Tag Archives: self tapping screws stainless steel

China Custom Customized Fastener Stainless Steel Anchor Eye Bolt Hook Self Tapping Screws for Wood

Product Description

 

Product Parameters

Product Standard

 

Mon M68 M72 M76 M80 M90 M100 M110 M125 M140 M160
p 6 6 6 6 6 6 6 6 6 8
da max 75 79 83 87 97 107 117 132 147 167
ds mas 68 72 76 88 90 100 110 125 140 160
ds min 67.26 71.26 75.26 79.26 89.13 99.13 109.13 124 139 159
e min 110.51 116.16 121.81 127.46 144.08 161.02 172.32 200.57 220.8 254.7
k min 42.5 44.5 47.5 49.5 56.4 62.4 68.4 78.4 87.3 99.3
k max 43.5 45.5 48.5 50.5 57.6 63.6 69.6 79.6 88.7 100.7
r min 2 2 2 2 2.5 2.5 2.5 2.5 2.5 2.5
s max 100 105 110 115 130 145 155 180 200 230
s min 97.8 102.8 107.8 112.8 127.5 142.5 152.5 177.5 195.4 225.4

 

Detailed Photos

 Application
 

 

Company Information
 

 

 

 

Production Process

Certifications

 

Packaging & Shipping

FAQ

1.Are you a manufacturer or a trading company?

We are a professional fasteners manufacturer with  rich experience. And in order to do business with your company well,we established a branch to open the foreign trade fields.

2.Do you offer free samples?

We can provide free samples and you should pay the freight. After you place an order, we will give back the freight.

3.Do you accept our design on products or boxes?

Yes. We accept customized design and we have a professional design team who can design products based on your requirements. 

4.How long is your delivery time?

Generally 7-10 days if the goods are in stock or 15-30 days not in stock.In a word,according to the order quantity.

    5.Why choose us?

        1) Reply you in 24 working hours.
        2) Experienced staffs would like to answer all your questions in time.
        3) Customized design is available. ODM&OEM are welcomed.
        4) Special discount and protection of sales are provided to our consumers.
        5) We can provide free sample, consumer should pay the freight first, and the expensive sample cost will be added in the next order.
        6) As an honest exported seller, we always use professional factory, quality quotation, good service, skilled technicians to ensure our products to be finished in high quality and stable feature.
      /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

    Material: Stainless Steel
    Type: Square Head
    Connection: Common Bolt
    Head Style: Square
    Standard: DIN
    Grade: A2
    Samples:
    US$ 2/Piece
    1 Piece(Min.Order)

    |

    Customization:
    Available

    |

    eye bolt screw

    How do environmental factors impact the choice of materials for eye bolt screws?

    Environmental factors play a crucial role in determining the appropriate choice of materials for eye bolt screws. Different environments can subject eye bolt screws to various conditions that can affect their performance, durability, and resistance to corrosion. Here’s a detailed explanation of how environmental factors impact the selection of materials for eye bolt screws:

    • Corrosion Resistance: One of the primary considerations when selecting materials for eye bolt screws is their resistance to corrosion. Environmental factors such as moisture, humidity, saltwater, chemicals, and exposure to corrosive gases can accelerate the corrosion process. In corrosive environments, materials like stainless steel, galvanized steel, or other corrosion-resistant alloys are commonly chosen to ensure the long-term integrity and reliability of the eye bolt screws.
    • Temperature Extremes: Extreme temperatures can impact the mechanical properties of materials used in eye bolt screws. High temperatures can cause thermal expansion, which may affect the dimensional stability and load-bearing capacity of the screws. Conversely, low temperatures can make certain materials brittle and prone to fracture. Therefore, eye bolt screws intended for use in extreme temperature environments may require materials with high-temperature resistance, low-temperature toughness, or thermal stability.
    • UV Exposure: Eye bolt screws used in outdoor applications are often exposed to ultraviolet (UV) radiation from sunlight. Prolonged UV exposure can degrade the mechanical properties and surface finish of certain materials. To mitigate the effects of UV radiation, materials with UV-resistant coatings or additives may be chosen. Additionally, materials like stainless steel or non-metallic composites that have inherent UV resistance can be used to ensure the longevity and performance of the eye bolt screws.
    • Chemical Exposure: Environments with chemical exposure, such as industrial facilities or laboratories, require eye bolt screws that can withstand the specific chemicals present. Certain chemicals can cause corrosion, degradation, or chemical reactions with certain materials. In such cases, materials with high chemical resistance, such as specific grades of stainless steel or other alloys, may be selected to ensure the eye bolt screws can withstand the chemical environment without compromising their integrity.
    • Outdoor and Marine Environments: Eye bolt screws used in outdoor or marine environments are exposed to a combination of factors, including moisture, humidity, temperature variations, UV radiation, and saltwater exposure. These environments are particularly challenging due to the increased risk of corrosion. Eye bolt screws for outdoor or marine applications often require materials designed to withstand these harsh conditions, such as marine-grade stainless steel, galvanized steel, or other corrosion-resistant alloys.
    • Electrical Conductivity: In some applications, electrical conductivity or non-conductivity of eye bolt screws may be a critical consideration. Certain environments require non-conductive materials to prevent electrical currents from flowing through the screws, reducing the risk of electrical hazards. Conversely, in electrical grounding or bonding applications, conductive materials like brass or certain steel alloys may be preferred to ensure proper electrical continuity.

    By carefully considering the environmental factors, engineers and designers can choose materials for eye bolt screws that possess the necessary properties to withstand the specific conditions they will encounter. This ensures the longevity, performance, and safety of the eye bolt screws in their intended environments.

    eye bolt screw

    How do eye bolt screws contribute to load-bearing and lifting operations?

    Eye bolt screws play a crucial role in load-bearing and lifting operations by providing a secure and reliable attachment point for connecting lifting equipment, such as ropes, cables, or chains, to the load being lifted. Here’s how eye bolt screws contribute to load-bearing and lifting operations:

    1. Attachment Point: Eye bolt screws feature an eye or loop at one end, which serves as the attachment point for lifting equipment. The shape and design of the eye provide a secure and properly fitting connection for the hardware used in lifting operations, ensuring that the load remains stable and properly supported during lifting.
    2. Load Distribution: When a load is attached to an eye bolt screw, the screw transfers the weight and forces exerted by the load to the surrounding structure or support system. The eye bolt screw acts as a load-bearing component, distributing the load evenly across its body and the attachment point. This helps prevent concentrated stress on a single point, reducing the risk of failure or damage.
    3. Strength and Load Capacity: Eye bolt screws are designed and manufactured to have high load-bearing capacities to withstand the forces encountered during lifting operations. They are made from materials with sufficient tensile and yield strength, ensuring that they can handle the expected loads without deformation or failure. The load capacity of an eye bolt screw is typically specified by the manufacturer and should not be exceeded to maintain safety.
    4. Flexibility and Versatility: Eye bolt screws come in various sizes, shapes, and configurations, allowing them to be used in a wide range of load-bearing and lifting applications. They can be installed in different orientations, such as vertical, horizontal, or angled, depending on the specific lifting requirements. This flexibility makes eye bolt screws adaptable to different lifting scenarios and enables them to accommodate various hardware and equipment.
    5. Safety Considerations: Eye bolt screws are subject to specific safety guidelines and standards to ensure their proper use in load-bearing and lifting operations. These guidelines may include factors such as proper installation torque, inspection and maintenance requirements, and load capacity limitations. Adhering to these safety considerations helps minimize the risk of accidents, load failures, or injuries during lifting operations.

    Overall, eye bolt screws provide a critical link between the load and the lifting equipment, enabling safe and efficient load-bearing and lifting operations. Their strength, reliability, and versatility make them indispensable components in various industries, including construction, manufacturing, rigging, and material handling.

    eye bolt screw

    In what industries or scenarios are eye bolt screws commonly employed?

    Eye bolt screws are commonly employed in various industries and scenarios where a reliable and secure attachment point is required. Their versatility and ability to accommodate different loads and materials make them suitable for a wide range of applications. Here are some industries and scenarios where eye bolt screws are commonly used:

    1. Construction and Rigging: Eye bolt screws are widely used in the construction and rigging industry. They provide a secure anchor point for attaching cables, ropes, or chains to lift heavy objects, such as equipment, structural components, or construction materials. Eye bolt screws are essential for rigging operations, scaffolding systems, temporary structures, and the safe movement of loads during construction or renovation projects.
    2. Marine and Boating: In the marine and boating industry, eye bolt screws are employed for various purposes. They serve as attachment points for ropes, lines, or cables used in securing sails, rigging, or mooring. Eye bolt screws made from corrosion-resistant materials, such as stainless steel or galvanized steel, are preferred in marine environments due to their resistance to saltwater and harsh weather conditions.
    3. Outdoor and Recreational Activities: Eye bolt screws find applications in outdoor and recreational activities. They are used to create secure attachment points for hanging swings, hammocks, zip lines, or other recreational equipment. Eye bolt screws are also utilized in camping, hiking, and adventure sports for setting up shelters, securing equipment, or establishing temporary structures.
    4. Manufacturing and Industrial: Eye bolt screws play a vital role in manufacturing and industrial settings. They are utilized for hanging fixtures, overhead conveyors, or jigs and fixtures. Eye bolt screws facilitate the safe and efficient movement of materials, components, or workpieces within production lines or assembly processes. They are also employed in equipment installation, maintenance, and securing loads during transportation within manufacturing facilities.
    5. Automotive and Transportation: In the automotive and transportation industries, eye bolt screws are used for various purposes. They serve as anchor points for securing cargo, tying down loads in trucks or trailers, or attaching accessories like bike racks or roof boxes. Eye bolt screws designed for automotive applications often feature additional provisions for mounting brackets or hardware.
    6. Utilities and Power Distribution: Eye bolt screws are commonly employed in utilities and power distribution systems. They are used for attaching cables, wires, or grounding equipment to utility poles, towers, or other structures. Eye bolt screws provide a reliable and secure connection for electrical and communication infrastructure, ensuring the stability and safety of power distribution networks.

    These are just a few examples of industries and scenarios where eye bolt screws are commonly employed. Their versatility and wide range of applications make them essential in many other fields, such as mining, agriculture, aerospace, entertainment, and more. When using eye bolt screws, it is important to consider the specific requirements of the application, including load capacity, material strength, corrosion resistance, and compliance with safety regulations, to ensure safe and reliable performance.

    China Custom Customized Fastener Stainless Steel Anchor Eye Bolt Hook Self Tapping Screws for Wood  China Custom Customized Fastener Stainless Steel Anchor Eye Bolt Hook Self Tapping Screws for Wood
    editor by Dream 2024-04-22

    China supplier Wholesale Manufacturers Stainless Steel Hook Screw Self Tapping Eyelet Screws Eye Hook Screw for Wood

    Product Description

    Made in China Self Tapping Screw eye hook stainless eye hole screws

    Item Eye Screw
    Size M3-M30
    Length 5-200mm
    Material Stainless Steel, Carbon Steel
    Surface Passivation, Plain, Galvanized, Zinc Plated
    Packaging Carton Box / Bag +Pallet
    Standard DIN, GB,ASME/ANSI,JIS, BSW, ISO
    Delivery Time 3-15 days
    OEM Available

     

    Bolt Screw Nut Washer
    Rivet Anchor Pin  Hex Bolt
    Drywall Screw Hex Nut Wedge Anchor Flat Washer  

    Q: What’s your product range?
    A: Our product cover Bolts, Screws, Nuts, Washers, Spring ,Rivet, Anchor, Nail, CNC parts and so on.

    Q: How long is your delivery time?
    A: 3 days for stock items,7-15 days for production.

    Q: How do you control your quality.
    A: QC on-line inspection and final inspection before delivery. 6S management. MTC and Quality Report can be provide.

    Q: Could you provide free samples?
    A: Yes, we could offer free samples for the items in stock, just need to pay shipping cost, it can be refunded to your orders.

    Q: Do you accept small order?
    A: Sure, we can accept small orders if we have stock of the specification which you need..

    Q: What is your packing ?
    A: 20-25kg for 1 carton,36 or 48 cartons for 1 pallet. One pallets is about 900-960kg. Customized carton and Customer’s logo is available. 

    Q: What is your payment term?
    A: We can accept T/T, L/C for bulk order. Paypal and Western Union for small order or sample order.
    Made-in-China Online payment is available.

    Q: Do you accept customized order?
    A: Yes, we can produce according to sample or drawing.

    /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

    Material: Stainless Steel/Carbon Steel
    Type: Eye Screw
    Connection: Common Bolt
    Head Style: Eye Screw
    Standard: DIN, GB, ANSI, JIS
    Grade: A2-70, A4-80, 4.8/8.8
    Samples:
    US$ 0/Piece
    1 Piece(Min.Order)

    |

    Customization:
    Available

    |

    eye bolt screw

    How do environmental factors impact the choice of materials for eye bolt screws?

    Environmental factors play a crucial role in determining the appropriate choice of materials for eye bolt screws. Different environments can subject eye bolt screws to various conditions that can affect their performance, durability, and resistance to corrosion. Here’s a detailed explanation of how environmental factors impact the selection of materials for eye bolt screws:

    • Corrosion Resistance: One of the primary considerations when selecting materials for eye bolt screws is their resistance to corrosion. Environmental factors such as moisture, humidity, saltwater, chemicals, and exposure to corrosive gases can accelerate the corrosion process. In corrosive environments, materials like stainless steel, galvanized steel, or other corrosion-resistant alloys are commonly chosen to ensure the long-term integrity and reliability of the eye bolt screws.
    • Temperature Extremes: Extreme temperatures can impact the mechanical properties of materials used in eye bolt screws. High temperatures can cause thermal expansion, which may affect the dimensional stability and load-bearing capacity of the screws. Conversely, low temperatures can make certain materials brittle and prone to fracture. Therefore, eye bolt screws intended for use in extreme temperature environments may require materials with high-temperature resistance, low-temperature toughness, or thermal stability.
    • UV Exposure: Eye bolt screws used in outdoor applications are often exposed to ultraviolet (UV) radiation from sunlight. Prolonged UV exposure can degrade the mechanical properties and surface finish of certain materials. To mitigate the effects of UV radiation, materials with UV-resistant coatings or additives may be chosen. Additionally, materials like stainless steel or non-metallic composites that have inherent UV resistance can be used to ensure the longevity and performance of the eye bolt screws.
    • Chemical Exposure: Environments with chemical exposure, such as industrial facilities or laboratories, require eye bolt screws that can withstand the specific chemicals present. Certain chemicals can cause corrosion, degradation, or chemical reactions with certain materials. In such cases, materials with high chemical resistance, such as specific grades of stainless steel or other alloys, may be selected to ensure the eye bolt screws can withstand the chemical environment without compromising their integrity.
    • Outdoor and Marine Environments: Eye bolt screws used in outdoor or marine environments are exposed to a combination of factors, including moisture, humidity, temperature variations, UV radiation, and saltwater exposure. These environments are particularly challenging due to the increased risk of corrosion. Eye bolt screws for outdoor or marine applications often require materials designed to withstand these harsh conditions, such as marine-grade stainless steel, galvanized steel, or other corrosion-resistant alloys.
    • Electrical Conductivity: In some applications, electrical conductivity or non-conductivity of eye bolt screws may be a critical consideration. Certain environments require non-conductive materials to prevent electrical currents from flowing through the screws, reducing the risk of electrical hazards. Conversely, in electrical grounding or bonding applications, conductive materials like brass or certain steel alloys may be preferred to ensure proper electrical continuity.

    By carefully considering the environmental factors, engineers and designers can choose materials for eye bolt screws that possess the necessary properties to withstand the specific conditions they will encounter. This ensures the longevity, performance, and safety of the eye bolt screws in their intended environments.

    eye bolt screw

    Can eye bolt screws be used for both temporary and permanent installations?

    Yes, eye bolt screws can be used for both temporary and permanent installations, depending on the specific application and requirements. Let’s explore the use of eye bolt screws in both scenarios:

    Temporary Installations:

    Eye bolt screws are commonly employed in temporary installations where a temporary attachment point is needed for lifting or securing loads. Some examples of temporary installations include:

    • Construction and Rigging: Eye bolt screws can be used during construction or rigging projects to provide temporary attachment points for lifting equipment, securing temporary structures, or supporting temporary loads. They offer a quick and convenient solution for temporary lifting operations and can be easily installed and removed as needed.
    • Events and Exhibitions: Eye bolt screws are often used in event setups, such as stage installations, exhibition displays, or hanging decorations. They provide a temporary attachment point for suspending lighting, audio equipment, banners, or other temporary fixtures. Once the event or exhibition is over, the eye bolt screws can be removed without causing permanent damage to the venue.
    • Temporary Storage and Transport: Eye bolt screws can be used in temporary storage or transport applications to secure loads during transit or storage. They provide a reliable attachment point for securing items with ropes, cables, or straps, ensuring that they remain stable and protected during temporary storage or transportation.

    Permanent Installations:

    Eye bolt screws are also suitable for permanent installations that require a long-term or permanent attachment point. Some examples of permanent installations include:

    • Industrial and Manufacturing: Eye bolt screws are commonly used in industrial and manufacturing settings to create permanent attachment points for lifting heavy machinery, equipment, or structural components. These installations are designed to be long-lasting and provide a reliable and secure connection for ongoing lifting operations.
    • Marine and Boating: Eye bolt screws with corrosion-resistant materials, such as stainless steel, are frequently used in marine and boating applications. They serve as permanent attachment points for securing ropes, cables, or chains on boats, docks, or other marine structures, ensuring safe and reliable mooring or towing operations.
    • Building and Infrastructure: Eye bolt screws are utilized in building and infrastructure projects for permanent installations. They are often embedded into concrete or other structural materials to create permanent attachment points for lifting, suspension, or anchoring purposes. These installations are designed to withstand long-term loads and provide a durable and dependable attachment solution.

    It is important to note that regardless of whether eye bolt screws are used for temporary or permanent installations, proper installation techniques, load calculations, and adherence to safety guidelines are essential to ensure the effectiveness, reliability, and safety of the installations.

    eye bolt screw

    How does the design of an eye bolt screw contribute to its strength and durability?

    The design of an eye bolt screw plays a crucial role in determining its strength and durability. Various design features are incorporated to ensure that the eye bolt screw can withstand the intended loads and provide a reliable and long-lasting attachment point. Here are some ways in which the design contributes to the strength and durability of an eye bolt screw:

    1. Material Selection: Eye bolt screws are available in different materials, such as steel, stainless steel, or other alloys. The choice of material depends on the specific application and environmental factors. High-strength materials like stainless steel or alloy steel are commonly used to enhance the strength and corrosion resistance of the eye bolt screw.
    2. Threaded Shank: The threaded shank of an eye bolt screw allows for easy installation by screwing it into a pre-drilled hole or threaded receptacle. The design of the thread profile and pitch ensures a secure and tight fit. The threads distribute the applied load over a larger area, reducing stress concentration and increasing the overall strength of the attachment.
    3. Eye Design: The design of the eye, or the looped end, of an eye bolt screw is critical for its performance. The eye is typically circular or oval-shaped, providing a smooth and continuous attachment point. The shape and size of the eye are designed to accommodate the intended hardware, such as cables, ropes, or chains, ensuring a proper fit and reducing the risk of slippage or failure.
    4. Shoulder or Collar: Some eye bolt screws feature a shoulder or collar between the shank and the eye. This shoulder provides additional support and prevents the bolt from pulling through the attachment point. The presence of a shoulder enhances the load-bearing capacity and stability of the eye bolt screw, making it suitable for heavy-duty applications.
    5. Load Ratings and Compliance: Eye bolt screws are designed to meet specific load ratings and comply with industry standards and safety regulations. The design takes into account the anticipated loads and forces that the eye bolt screw will experience. Load ratings are determined through testing and ensure that the eye bolt screw can safely handle the intended loads without failure or deformation.
    6. Corrosion Resistance: In environments where corrosion is a concern, eye bolt screws are designed with corrosion-resistant materials or coatings. Stainless steel or galvanized steel eye bolt screws are commonly used in applications where exposure to moisture, chemicals, or harsh weather conditions is expected. This design choice enhances the durability and longevity of the eye bolt screw.

    By considering these design factors, manufacturers can produce eye bolt screws that are capable of withstanding the intended loads, provide a secure attachment point, and resist environmental factors that could compromise their strength and durability. It is crucial to choose eye bolt screws that are designed and rated for the specific application to ensure safe and reliable performance.

    China supplier Wholesale Manufacturers Stainless Steel Hook Screw Self Tapping Eyelet Screws Eye Hook Screw for Wood  China supplier Wholesale Manufacturers Stainless Steel Hook Screw Self Tapping Eyelet Screws Eye Hook Screw for Wood
    editor by CX 2024-04-16

    China OEM High Precision A2 A4 Stainless Steel M3 M4 M5 Open Hook Long Sheep Eye Bolt Self Tapping Screws

    Product Description

    High  Precision A2 A4 Stainless Steel M3 M4 M5 Open Hook Long Sheep Eye Bolt Self Tapping Screws

    Material

    Stainless Steel 

    Type

    eye bolts

    Diameter

    M3-M30

    Head Type

    Eye Hook

    OEM

    available

    Threaded Rods Thumb screws Socket Screws Security Screws 
    Shoulder Screws Rivets Solar Hanger Bolt  Pins
     Springs Captive Screws U/L/J bolts Machine Screws  

     

    Our Advantages

    Warehouse

    Packaging & Shipping

    Payment

    Customers

    FAQ:

    Q: Are you trading company or manufacturer ?

    A: We are manufacturer .

    Q: How long is your delivery time?

    A: Generally it is 7-15 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to specific item and quantity.

    Shortest Delivery: We have large stock, 3 days for stock items,7-15days for production.

    Q: Do you provide samples ? is it free or extra ?

    A: Yes, we could offer the sample for free charge but do not pay the shipping cost.
    Q: What is your terms of payment ?
    A: Less than USD5000———–100% T/T in advance.
    More than USD5000———–50% T/T in advance ,balance before shippment.
    Other terms is welcome.

    Q: What is your price terms ?
    A: EXW/FOB/CIF/CFR/FCA/CPT/CIP/DAP/DDP

    Q:What’s your product range?
    A: Our product range includes screws, nuts, knobs, bolts, washers, rivet, anchor and CNC parts. We strictly implement various quality standards like GB, ISO, DIN, JIS, AISI NFE and BSW.Non-standard products also accepted.

    Q:Why should I choose you? What’s your advantages? Industries you are serving?
    A: We are a professional manufacturer and have many years production and management experience in the field of fasteners .We can provide our customers with a good solution in the area of production design, production process,packaging and after-sale service.Customer satisfaction is our sole pursuit.

    /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

    Material: Stainless Steel
    Type: Eye Bolts
    Connection: Common Bolt
    Samples:
    US$ 10/Piece
    1 Piece(Min.Order)

    |

    Order Sample

    Customization:
    Available

    |

    .shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

    Shipping Cost:

    Estimated freight per unit.







    about shipping cost and estimated delivery time.
    Payment Method:







     

    Initial Payment



    Full Payment
    Currency: US$
    Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

    eye bolt screw

    What are the signs that indicate a need for eye bolt screw replacement or maintenance?

    Eye bolt screws require regular inspection to identify signs of wear, damage, or other issues that may necessitate replacement or maintenance. Detecting these signs early helps prevent failures, ensure safety, and maintain optimal performance. Here’s a detailed explanation of the signs that indicate a need for eye bolt screw replacement or maintenance:

    • Visible Damage: Inspect the eye bolt screws for visible signs of damage, such as cracks, bending, or deformation. Any visible damage indicates a potential weakness that can compromise the structural integrity of the screws.
    • Thread Damage: Examine the threads of the eye bolt screws for signs of wear, stripping, or cross-threading. Damaged threads can result in reduced strength, improper engagement, or difficulty in tightening or loosening the screws.
    • Corrosion: Check for signs of corrosion on the surface of the eye bolt screws. Corrosion can weaken the material and compromise the load-carrying capacity of the screws. Look for rust, pitting, or discoloration, especially in outdoor or corrosive environments.
    • Loosening: If eye bolt screws consistently loosen or require frequent retightening, it may indicate a problem. Check for proper torque and ensure that the screws remain securely fastened. Persistent loosening may be a sign of thread damage, insufficient engagement, or inadequate tightening.
    • Excessive Wear: Evaluate the overall condition of the eye bolt screws for signs of excessive wear. This includes wear on the shank, head, or bearing surfaces. Excessive wear can reduce the load capacity and compromise the performance of the screws.
    • Noise or Vibration: Unusual noises, vibrations, or rattling during operation can indicate loose or damaged eye bolt screws. If the screws are not securely fastened or if there is excessive clearance, it can lead to unwanted movement, noise, or vibration.
    • Deformation of Connected Components: Monitor for signs of deformation or damage in the components connected to the eye bolt screws. If the connected components show signs of stress, bending, or deformation, it may indicate issues with the screws or improper load distribution.
    • Change in Load Capacity: If the load requirements change or increase for the application, it is important to reassess the load capacity of the eye bolt screws. If the screws are not rated to handle the new loads, replacement or reinforcement may be necessary.

    Regular inspections and prompt action based on these signs are critical to maintaining the integrity and performance of eye bolt screws. When any of these signs are detected, it is advisable to consult the manufacturer’s recommendations, industry standards, or seek the expertise of a qualified professional to determine the appropriate course of action, whether it involves replacement, repair, or maintenance.

    By staying vigilant and addressing potential issues in a timely manner, you can ensure the reliability, safety, and longevity of eye bolt screws in various applications.

    eye bolt screw

    Can you provide examples of machinery or structures that commonly use eye bolt screws?

    Eye bolt screws are utilized in a wide range of machinery and structures where a secure and reliable attachment point is required for lifting, suspension, or anchoring purposes. Here are some examples of machinery and structures that commonly use eye bolt screws:

    • Cranes and Hoists: Cranes and hoists often incorporate eye bolt screws as attachment points for lifting cables, chains, or slings. Eye bolt screws provide a secure connection between the lifting equipment and the load being lifted, ensuring proper load distribution and stability during lifting operations.
    • Material Handling Equipment: Various types of material handling equipment, such as forklifts, pallet jacks, and lifting trolleys, may feature eye bolt screws as part of their design. These eye bolt screws serve as attachment points for hooks, clamps, or other lifting devices, enabling the equipment to safely handle and transport loads.
    • Industrial Machinery: Many types of industrial machinery incorporate eye bolt screws for lifting, securing, or anchoring components or subassemblies. Examples include presses, stamping machines, machining centers, and conveyor systems. Eye bolt screws provide a reliable means of attaching equipment or fixtures to the machinery, ensuring stability and safety during operation.
    • Marine and Boating Structures: Eye bolt screws are commonly used in marine and boating structures, such as boats, docks, and marinas. They serve as attachment points for ropes, cables, or chains used in mooring, towing, or securing operations. Eye bolt screws with corrosion-resistant materials are especially important in marine environments.
    • Stage and Rigging Systems: The entertainment industry often utilizes eye bolt screws in stage and rigging systems. They provide attachment points for suspending lighting fixtures, audio equipment, scenery, and other components. Eye bolt screws enable the safe and precise positioning of equipment during performances or events.
    • Building and Construction: Eye bolt screws are commonly used in building and construction applications. They can be embedded or attached to structural elements to create attachment points for lifting, securing, or hanging loads. Eye bolt screws are employed in various construction scenarios, including steel structures, concrete formwork, scaffolding, and temporary installations.
    • Transportation and Cargo: Eye bolt screws are utilized in transportation and cargo applications to secure loads during transit. They provide attachment points for ropes, straps, or chains used to secure cargo on trucks, trailers, or shipping containers. Eye bolt screws ensure that the loads remain stable and properly supported during transportation.

    These examples illustrate the diverse range of machinery and structures that commonly rely on eye bolt screws for safe and effective lifting, suspension, or anchoring operations. The specific design and application of eye bolt screws may vary depending on the unique requirements of each industry or use case.

    eye bolt screw

    Can you describe the proper installation and use of eye bolt screws in different settings?

    Proper installation and use of eye bolt screws are essential to ensure their effectiveness, safety, and longevity in various settings. Here are general guidelines for the installation and use of eye bolt screws in different settings:

    1. Preparation:
      • Identify the specific application and determine the load requirements, environmental conditions, and any applicable regulations or standards.
      • Select an appropriate eye bolt screw considering factors such as load capacity, material strength, corrosion resistance, and compatibility with the intended application.
      • Inspect the eye bolt screw for any defects, damage, or signs of wear before installation. Do not use a damaged or compromised eye bolt screw.
    2. Installation:
      • Pre-drill a hole or use a threaded receptacle of the appropriate size and depth to accommodate the eye bolt screw.
      • Screw the threaded end of the eye bolt screw into the pre-drilled hole or threaded receptacle. Ensure that the threads engage smoothly and do not cross-thread.
      • Tighten the eye bolt screw using an appropriate tool, such as a wrench or socket. Avoid over-tightening, as it may cause damage to the threads or the attachment point.
      • If the eye bolt screw has a shoulder or collar, ensure that it rests securely against the attachment surface for optimal load distribution.
    3. Load Application:
      • Attach the appropriate hardware, such as ropes, cables, or chains, to the eye of the eye bolt screw. Ensure that the hardware is compatible with the size and shape of the eye.
      • Inspect the attachment to verify that the hardware is properly secured within the eye and does not show signs of slippage or deformation.
      • Apply the load gradually and avoid sudden impacts or jerks that could cause excessive stress on the eye bolt screw or the attachment point.
      • Regularly inspect the eye bolt screw and the attachment for signs of wear, deformation, or loosening. If any issues are identified, take appropriate action to address them, such as tightening the eye bolt screw or replacing it if necessary.
    4. Maintenance and Safety:
      • Regularly inspect the eye bolt screw and its attachment for corrosion, wear, or damage. Clean and lubricate the eye bolt screw as needed, following the manufacturer’s recommendations.
      • Follow any specific maintenance instructions provided by the manufacturer for the particular type of eye bolt screw and its corresponding application.
      • Ensure that the load applied to the eye bolt screw does not exceed its rated capacity. Refer to load charts or consult with engineers or professionals when dealing with higher loads or critical applications.
      • Adhere to relevant safety guidelines and regulations specific to the industry or setting in which the eye bolt screw is being used.

    It is important to note that these guidelines provide general information for the installation and use of eye bolt screws. However, specific installations may have unique requirements or considerations based on the application and industry standards. Therefore, it is recommended to consult with professionals or experts in the relevant field to ensure proper installation and use of eye bolt screws in specific settings.

    China OEM High Precision A2 A4 Stainless Steel M3 M4 M5 Open Hook Long Sheep Eye Bolt Self Tapping Screws  China OEM High Precision A2 A4 Stainless Steel M3 M4 M5 Open Hook Long Sheep Eye Bolt Self Tapping Screws
    editor by CX 2024-03-01

    China Best Sales Eye Hooks Self Tapping Screw Heavy Duty 2 M5 Eye Screws for Wood Strong Screw Eye Hooks Stainless Steel Eye Bolt Eye Hooks for Hanging Screw Wood Screw

    Product Description

    Product Description

    These screw eyes are made of high quality 304 stainless steel, durable, rust-resistance, robust and safer.

    Deep screws and sharp screws port make easy to install and durable to use for such a long time, the eye screws tip of the thread is tapering and can be easily installed and inserted into the area you want.

    The screw eyes are widely used for attaching cables, chains and ropes in concrete and wood surfaces, serving both indoor and outdoor spaces. It is also 1 of the commonly used hardware accessories for architectural decoration. Perfect for hanging office objects, gym accessories, pot plants,hanging garden tools,kitchen tools,outdoor lamps, even for marine, bath and outdoor applications and so on. Also suitable for securely hanging light weight items such as lights, picture, arts, small rope cords, chains, and more.

    Name SS304 SS316 DIN Hook Screw, Eye Screw, Eyelets Screw,  hook bolt
    Head Type flat head,pan head, hex head, truss head, button head, round head, slice head, oval head and so on
    Size M3-M48
    Thread Type machine thread, fine thread, coarse thread, hi-low thread, cutting thread, reverse thread etc.
    Material carbon steel, stainless steel
    Grade 201, 304, 316, 410
    Surface Plain, Galvanzied, HDG, Nickel Plated, Ruspert coating, power coated and so on
    Standard GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
    Non-standards OEM is available, according to drawing or samples
    Samples Samples are free.
    Package bulk packing, small box packing, plastic bag packing, plastic box packing or as customers’ requirement.
    Payment TT, L/C

    Detailed Photos

    Company Profile

     

    Fastener Group is a leading manufacturer of stainless steel fasteners in China. It  started with the establishment of HangZhou FAST Hardware Co., Ltd. in 2005. At present, we have 3 manufacturing bases in ZheJiang , ZheJiang and ZheJiang . We are specialized in the production of various quality screws, including: tapping screw, machine screw, wood screw, Hex Socket cap screw, chipboard screw and other high-quality precision screws. They are widely used in various industries such as electronic communications, aerospace & defense, intelligent equipment, medical equipment, construction etc. All the products have been exporting to Europe, USA, Australia, Southeast Asia etc. 

    Our annual production capacity is more than 45,000 tons, and keep the continuous increasing. For standard fasteners, we have sufficient stocks with more than 12 thousand specifications. 

    Fastener Group is certified by IS09001 & ISO14001. Depending on the leading system of ERP, APS, MES (Manufacturing Execution System), QMS (quality management system), WMS (warehouse management system), we can provide products of consistent quality in the soonest delivery time. 

    MAIN PRODUCT

    Machine Screws 

    Spec: DIN, ISO, ANSIB, JIS, Drawing, Sample                  Standard: DIN7985, DIN965, DIN84, DIN963, ISO14583,  ISO14581, ISO14579, ISO14584                                               Head: Raised cheese Hd., Countersunk Hd., Pan Hd.,                                   Raised Countersunk Hd., Cap Hd.           Recess:      Cross Recessed, Hexalobular                          Diameter :    M2 ~ M12 ; #2 ~ 1/2”                                Length:          3 ~ 60mm ; 5/32” ~ 4”                              Material :    A2, A4, SUS 304, SUS 316 and carbon steel

    Chipboard Screws       

                                                                                              Spec:         DIN, ISO, ANSIB, JIS, Drawing, Sample  Standard:  DIN7505, DIN7505B,                                          Head:        Pan Hd., Countersunk Hd., Reinforced      Countersunk Hd., CHINAMFG  shape Hd.                                            Recess:     Cross Recessed, Hexalobular.                          Diameter:      ST3.5 ~ST6.3 ; #6 ~ #14                                  Length:         13 ~ 80mm ; 1/2” ~ 3”                                  Material:    A2,A4, SUS410,SUS 304,SUS 316 and carbon steel

    Socket Head Screws 

    Specification: DIN, ISO, ANSIB, JIS, Drawing, Sample  Standard:  DIN912, DIN7380-1, DIN7380-2, DIN7991,                           DIN7984, ISO14580, Cap Hd., Button Hd., Hexagon Hd., Countersunk Hd., Thin Cap Hd.                                        Recess:    Hexagon, Hexalobular, phi lips, socket, torx              Diametre:  M2 ~ M16 ; #2 ~ 5/8”                                    Length:      4 ~ 120mm ; 5/32” ~ 4-3/4”                                  Material:   A2, A4, SUS 304, SUS 316 and Carbon Steel

     

    Self Tapping Screws   

    Spec:         DIN, ISO, ANSIB, JIS, Drawing, Sample  Standard:  DIN7981, DIN7982, DIN7983, DIN968,                                      ISO14585,  ISO14586, ISO1479, ISO7053,            Head: Pan Hd., Countersunk Hd., Raised Countersunk Hd.,                           Hexagon Hd.                                              Recess:   Cross Recessed, Hexalobular                             Dia.:        ST2.2 ~ ST6.3 ; #2 ~ #1/4                             Length:   6 ~ 60mm ; 1/4” ~ 2-1/2”                                Material:   A2, A4, SUS 304, SUS 316 and carbon steel

    Self Drilling Screws  

    Spec:         DIN, ISO, ANSIB, JIS, Drawing, Sample  Standard:  DIN7504K, DIN7504M, DIN7504O, DIN7504R,       Head: Hexagon Hd., Pan Hd., Countersunk Hd.,                 Raised Countersunk Hd.                                                Recess:     Cross Recessed, Hexagon, phi lips, squre, torx              Dia.:      ST3.5 ~ST6.3 ; #6 ~ #14                            Length:        13 ~ 80mm ; 1/2” ~ 3”                                Material:    A2,A4, SUS410,SUS 304,SUS 316 and carbon steel

     

    Slotted Screws 

    Spec:  DIN, ISO, ANSIB, JIS, Drawing, Sample                Standard:  DIN84, DIN85, DIN963, DIN964,                              Head: Cheese Hd., Pan Hd., Countersunk Hd.,                            Raised Countersunk Hd.                                            Recess:     Slotted.                                                                Dia. :           M2 ~ M8; #2 ~ 5/16”                                    Length:        6 ~ 60mm ; 1/4” ~ 2-1/2”                            Material:    A2, A4, SUS 304, SUS 316 and carbon steel

     

    SEMS Screw

    Spec:   DIN, ISO, ANSIB, JIS, Drawing, Sample          Standard:  DIN6900-1, DIN6900-1, DIN912 SEMS,   ISO7380 SEMS, GB9074.17, GB9074.13, GB9074.4, GB9074.8,            Head:  Hexagon Hd., Pan Hd., Small Pan Hd.,                            Cap Hd., Button Hd.                                                    Recess:     Cross Recessed, Hexagon                                Dia. :         M2.5 ~ M12 ; #4 ~ 1/2”                                Length:      6 ~ 100mm ; 5/16” ~ 4”                                Material :    A2, A4, SUS 304, SUS 316 and carbon steel

     

    SET Screws 

    Spec:         DIN, ISO, ANSIB, JIS, Drawing, Sample  Standard:  DIN913, DIN914, DIN915, DIN916,                      ISO4766,  ISO4734, ISO4735, ISO4736                                Point: Flat Point, Cone Point, Dog Point, Cup Point      Recess:     Hexagon, Slotted                                                Dia. :         M2 ~ M10 ; #2 ~ 3/8”                                    Length:     4 ~ 40mm ; 5/32” ~ 1-1/2”                            Material:    A2, A4, SUS 304, SUS 316 and carbon steel

    Special Screws/Decking Screws   

    Spec:         DIN, ISO, ANSIB, JIS, Drawing, Sample  Standard:   ISO 7380-1 + PIN                                                                       ISO 7380-2 + PIN                                                                       GB2672 + PIN                                                                           GB2673 + PIN                                                        Head:   Cheese Hd., Pan Hd., Countersunk Hd., Raised Countersunk Hd.  Thin Hd., Button Hd., Cap Hd.          Recess:    Cross Recessed, Hexagon, Hexalobular            Dia. :           M3 ~ M10; 42 ~ 3/8”                                  Length:          4 ~ 150mm ; 5/32” ~ 6”                            Material:    A2, A4, SUS 304, SUS 316 and carbon steel

     

    WHY CHOOSE US

     

    APPLICATIONS

     

    Certifications

     

    EXHIBITION

     

    PACKING AND SHIPPING

    FAQ

    Q: Are you trading company or manufacturer?
    A: We are factory, and we have 3 production bases to reach the production capacity more than 45000 tons per year.

    Q: Which countries do you export to?
    A: Our goods are mainly exported to European countries, USA, Middle Asia, South Korea, south Africa and so on.

    Q: Do you provide samples ? is it free?
    A: Yes, we could supply the samples for free, but do not pay the courier cost.

    Q: What is your terms of payment?
    A: 30% T/T in advance, the balance against copy of BL . 

     

    Q: How about the delivery time?
    A: Usually 1 container can be finished within 10-30 days after receiving your advance payment. and we have 12000 specifications in stock for customers’ urgent requirements.

     

    Q:Why Choose us?
    A: Focus on the fasteners for more than 20 years;
    B: Three manufacturing bases
    C: Expert sales teams with 7 X 24 hour service;
    D: Have got ISO,CE certificate and many patents.
    E. Have 900 employees, 100+ R&D Technical workers, many testing machines
    F: 45000 tons production capacity, 12000 specifications in stock
     

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    Material: Stainless Steel
    Shape of Head: Round
    Surface Finishing: Polishing
    Samples:
    US$ 0.1/Piece
    1 Piece(Min.Order)

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    Customization:
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    eye bolt screw

    Are there industry standards or regulations governing the use of eye bolt screws?

    Yes, there are industry standards and regulations that govern the use of eye bolt screws. These standards and regulations are in place to ensure the safety, reliability, and proper usage of eye bolt screws in various applications. Here’s a detailed explanation:

    Industry Standards:

    Industry standards provide guidelines and specifications for the design, materials, testing, and installation of eye bolt screws. These standards are developed and maintained by organizations such as the American Society of Mechanical Engineers (ASME), International Organization for Standardization (ISO), and various national and international standards bodies. The specific standards applicable to eye bolt screws may vary depending on factors such as the industry, application, and geographic location.

    Some common industry standards related to eye bolt screws include:

    • ASME B18.15: This standard provides dimensional requirements for metric eye bolts.
    • ASME B18.15.2: This standard covers the dimensional requirements for inch series eye bolts.
    • ISO 3266: This standard specifies the mechanical properties and dimensions of eye bolts with metric threads.
    • ISO 3266 (Inch Series): Similar to ISO 3266, this standard covers the mechanical properties and dimensions of eye bolts with inch series threads.
    • ASME B30.26: This standard, part of the ASME B30 series, provides guidelines for the rigging hardware used in lifting applications, including eye bolts.

    These standards ensure that eye bolt screws meet specific dimensional requirements, mechanical properties, and performance criteria. Compliance with industry standards helps to ensure the interchangeability and compatibility of eye bolt screws across different manufacturers and promotes safe and reliable usage in various industries.

    Regulations and Codes:

    In addition to industry standards, there may be regulations and codes set forth by regulatory bodies and government agencies that govern the use of eye bolt screws in specific applications or industries. These regulations aim to ensure the safety of workers, equipment, and the general public. The specific regulations applicable to eye bolt screws may vary depending on factors such as the jurisdiction and the nature of the application.

    For example, in industries such as construction, maritime, or oil and gas, regulatory bodies such as the Occupational Safety and Health Administration (OSHA) in the United States or the European Union’s Machinery Directive may have specific requirements or guidelines for the use of eye bolt screws in lifting, rigging, or anchoring operations. Compliance with these regulations is essential to ensure compliance with workplace safety standards and to prevent accidents or failures.

    It is important for individuals and organizations to be aware of and comply with relevant industry standards and regulations governing the use of eye bolt screws in their specific applications. This helps to ensure the proper selection, installation, and usage of eye bolt screws, promoting safety, reliability, and compliance with industry best practices.

    eye bolt screw

    What is the role of eye bolt screws in ensuring proper alignment and stability?

    Eye bolt screws play a crucial role in ensuring proper alignment and stability in various applications where they are used. Let’s explore the specific contributions of eye bolt screws in achieving alignment and stability:

    Alignment:

    Eye bolt screws assist in achieving proper alignment by providing a designated attachment point that helps guide or position the connected components. Here’s how they contribute to alignment:

    • Structural Alignment: In construction and engineering projects, eye bolt screws can be used to align and secure structural elements during assembly. They provide a reference point for ensuring that components are correctly positioned and aligned, helping to maintain overall structural integrity.
    • Machinery Alignment: Eye bolt screws are often employed in machinery and equipment installations to ensure proper alignment of components. By attaching machinery parts or subassemblies to the eye bolt screws, precise alignment can be achieved, reducing misalignment issues that could affect the performance or longevity of the machinery.
    • Stage and Rigging Alignment: In the entertainment industry, eye bolt screws are crucial for aligning and positioning stage equipment, lighting fixtures, and scenery. They serve as anchor points, allowing for accurate placement and alignment of these elements, contributing to the overall visual appeal and safety of performances or events.
    • Marine Alignment: Eye bolt screws are utilized in marine applications to assist in aligning and securing various components on boats, docks, or other marine structures. They help ensure that ropes, cables, or chains are attached at the appropriate points, allowing for proper alignment and safe operation of marine equipment and structures.

    Stability:

    Eye bolt screws are instrumental in providing stability to structures, equipment, or loads by creating secure attachment points. Here’s how they contribute to stability:

    • Lifting Stability: Eye bolt screws are frequently used in lifting applications to enhance stability. By providing a reliable attachment point for lifting equipment, such as hooks or slings, they help distribute the load evenly and minimize the risk of slippage or shifting during lifting operations. This promotes stability and ensures safe lifting practices.
    • Suspension Stability: In applications where objects need to be suspended, such as stage equipment or hanging displays, eye bolt screws serve as stable anchor points. They allow for secure attachment of suspension cables, wires, or chains, ensuring that the suspended objects remain stable and balanced, minimizing the risk of swinging or unintended movement.
    • Securing Stability: Eye bolt screws provide a reliable means of securing items during transportation or storage. By attaching ropes, straps, or chains to the eye bolt screws, loads can be effectively secured, preventing shifting or instability that could lead to damage or accidents. This promotes stability and safety in transportation and storage operations.
    • Anchoring Stability: Eye bolt screws are commonly used for anchoring structures or equipment to the ground or other stable surfaces. By securely fastening the eye bolt screws into the anchor point, stability is achieved, preventing movement, tipping, or displacement of the anchored objects, particularly in applications such as tents, awnings, or outdoor structures.

    Overall, eye bolt screws contribute significantly to proper alignment and stability in various applications. They provide reliable attachment points, facilitating precise alignment and ensuring stability, which are essential for the safe and efficient operation of machinery, structures, and lifting operations.

    eye bolt screw

    What are the specific features and components of an eye bolt screw?

    An eye bolt screw consists of several specific features and components that contribute to its functionality and versatility. Understanding these features can help in selecting the appropriate eye bolt screw for a given application. Here are the key components and features of an eye bolt screw:

    1. Shank: The shank is the cylindrical portion of the eye bolt screw that extends from the head to the threaded end. It provides the main body of the screw and determines its overall length and diameter. The shank can be straight or tapered, depending on the design and intended use of the eye bolt screw.
    2. Threaded End: The threaded end of the eye bolt screw features external threads that allow for easy installation by screwing it into a pre-drilled hole or threaded receptacle. The thread design and pitch may vary depending on the specific eye bolt screw type and intended application.
    3. Head: The head is the top portion of the eye bolt screw and is typically larger in diameter than the shank. It provides a surface for tightening or loosening the screw using a wrench, socket, or other appropriate tools. The head can have different shapes, such as hexagonal, square, or round, depending on the design of the eye bolt screw.
    4. Eye: The eye is the looped or circular component at the opposite end of the head. It provides the attachment point for ropes, cables, chains, or other hardware. The eye can be circular or oval-shaped, depending on the design of the eye bolt screw. It should have a smooth surface without any sharp edges to prevent damage to the attached hardware.
    5. Shoulder or Collar: Some eye bolt screws feature a shoulder or collar between the shank and the eye. The shoulder provides additional support and prevents the bolt from pulling through the attachment point. The presence of a shoulder enhances the load-bearing capacity and stability of the eye bolt screw, making it suitable for heavy-duty applications.
    6. Material: Eye bolt screws are available in various materials, including steel, stainless steel, or other alloys. The choice of material depends on factors such as load requirements, environmental conditions, and corrosion resistance. High-strength materials like stainless steel or alloy steel are commonly used to enhance the strength and durability of the eye bolt screw.
    7. Coating or Finish: Eye bolt screws may have a coating or finish to provide additional protection against corrosion or enhance their aesthetic appearance. Common coatings include zinc plating, galvanization, or various types of paint. These coatings help to prolong the lifespan of the eye bolt screw and maintain its performance in challenging environments.

    These specific features and components collectively determine the functionality, strength, and durability of an eye bolt screw. When selecting an eye bolt screw, it is important to consider factors such as load capacity, material strength, corrosion resistance, and compatibility with the intended application. This ensures that the eye bolt screw will provide a reliable and secure attachment point for the desired use.

    China Best Sales Eye Hooks Self Tapping Screw Heavy Duty 2 M5 Eye Screws for Wood Strong Screw Eye Hooks Stainless Steel Eye Bolt Eye Hooks for Hanging Screw Wood Screw  China Best Sales Eye Hooks Self Tapping Screw Heavy Duty 2 M5 Eye Screws for Wood Strong Screw Eye Hooks Stainless Steel Eye Bolt Eye Hooks for Hanging Screw Wood Screw
    editor by CX 2024-01-09

    China Custom China Custom 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws with Good quality

    Product Description

     

    Q1: Are you trading company or manufacturing company?
    A:We are factory. 

    Q2:What is your main products?
    A:Our main products are fasteners :bolts ,srews,thread rod,nuts ,washer ,anchors and rivets .
    Meantime ,our company also prodces stamping parts and machined parts 

    Q3:How to order? 
    A:Send the inquire by email.   

    Q4:Do you provide samples? Is it free or extra?
    A:Yes, we could offer the sample for free charge if the samples in stock but do not pay the air cost.

    Q5: What is the delivery ?
    A: Sample order’s delivery time is 5- 7 days. Container orders are about 15-20 days.

    Q6:What’s your main market:
    A:USA,Canada,Europe,UK,Middle East,Asia and ext.

    • Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers’ specification and performance.
    • Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
    • Cost effective: Competitive prices with factory directly supply
    • Perfect fastening solution with 20 years experiences to solve your problem: Wide range of parts selection.
    • Customized Ideal Fasteners: customized services according to the samples and drawings offered.

    Screw Shaft Features Explained

    When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

    Threads

    The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
    The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
    The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
    screwshaft

    Lead

    In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
    A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
    When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

    Pitch

    The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
    A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
    The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

    Helix angle

    The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
    High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
    A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
    screwshaft

    Size

    The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
    Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
    In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
    screwshaft

    Shape

    Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
    The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
    The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

    Lubrication

    In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
    When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
    Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

    China Custom China Custom 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws   with Good qualityChina Custom China Custom 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws   with Good quality

    China Hot selling China Custom Good Price 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws wholesaler

    Product Description

    China custom good price 45mm m8 m10 small 316 open eyes hook screw din580 metal stainless steel self tapping sheep eye screws

    Item Eye Screw
    Size M3-M30
    Length 5-200mm
    Material Stainless Steel, Carbon Steel 
    Finish Plain, Passivation, Zinc plated, Galvanized, Black, or according to your requirement
    Standard DIN, ASME, BS, JIS, AS, EN, GB for option
    Packaging Carton Box / Bag +Pallet
    Delivery Time 3-15 days
    OEM Available

     

    Bolt Screw Nut Washer
    Rivet Anchor Pin  Hex Bolt
    Drywall Screw Hex Nut Wedge Anchor Flat Washer  

    Q: What’s your product range?
    A: Our product cover Bolts, Screws, Nuts, Washers, Spring ,Rivet, Anchor, Nail, CNC parts and so on.

    Q: How long is your delivery time?
    A: 3 days for stock items,7-15 days for production.

    Q: How do you control your quality.
    A: QC on-line inspection and final inspection before delivery. 6S management. MTC and Quality Report can be provide.

    Q: Could you provide free samples?
    A: Yes, we could offer free samples for the items in stock, just need to pay shipping cost, it can be refunded to your orders.

    Q: Do you accept small order?
    A: Sure, we can accept small orders if we have stock of the specification which you need..

    Q: What is your packing ?
    A: 20-25kg for 1 carton,36 or 48 cartons for 1 pallet. One pallets is about 900-960kg. Customized carton and Customer’s logo is available. 

    Q: What is your payment term?
    A: We can accept T/T, L/C for bulk order. Paypal and Western Union for small order or sample order.
    Made-in-China Online payment is available.

    Q: Do you accept customized order?
    A: Yes, we can produce according to sample or drawing.

     

    Screw Shaft Types

    If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

    Machined screw shafts

    Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
    For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
    Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
    In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
    screwshaft

    Ball screw nuts

    If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
    When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
    The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
    The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You’ll be amazed by the results of the work of these ball screw nuts.
    screwshaft

    Threaded shank

    Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress 2 pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as 1 with a fully threaded shank.
    In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is 8 mm in diameter but has a thread pitch of 1 mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
    The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
    The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

    Round head

    A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
    A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
    Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
    Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
    screwshaft

    Self-locking mechanism

    A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
    The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
    Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
    Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.

    China Hot selling China Custom Good Price 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws   wholesaler China Hot selling China Custom Good Price 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws   wholesaler

    China Professional Stainless Steel Customized Special Self Tapping Pan Head Screws with Best Sales

    Product Description

     

    Product Description

    OEM.ODM is available Greencate is acceptable for us 
    We can design drawings according to your samples, or make samples according to your drawings.
    We need more detail as follow with many thanks. This will allow us to give you an accurate quotation if you need customized.
    • Product:
    • Material:
    • Class grade:
    • Order Quantity:  
    • Surface treatment:
    • When do you need it by?
    • Where to Shipping (Country with postal code please) :
    • Measure: Inside Diameter/Outside Diameter/Thickness/Length:                
    • Email your drawing ( jpg, png or pdf, word) with minimum 300 dpi resolution for good clarity.

    Product Name

     SPCIAL SCREW From DIN 7971

    Material

      SUS304

    Color

    polish,self-color

    Standard

    DIN GB ISO JIS BA ANSI

    Finished

    polish ,passivation

    Detailed Photos

     

     

    Product Parameters

     

    Screw Thread ST2.2 ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 ST5.5 ST6.3
    d                
    P Pitch   0.8 1.1 1.3 1.3 1.4 1.6 1.8 1.8
    a max   0.8 1.1 1.3 1.3 1.4 1.6 1.8 1.8
    dk max=nominal size   4.2 5.6 6.9 7.5 8.2 9.5 10.8 12.5
    min   3.9 5.3 6.54 7.14 7.84 9.14 10.37 12.07
    k max=nominal size   1.35 1.75 2.1 2.25 2.45 2.8 3.2 3.65
    min   1.15 1.5 1.85 2 2.15 2.5 2.85 3.3
    n Nominal Size   0.6 0.8 1 1 1.2 1.2 1.6 1.6
    min   0.66 0.86 1.06 1.06 1.26 1.26 1.66 1.66
    max   0.8 1 1.2 1.2 1.51 1.51 1.91 1.91
    t min   0.55 0.75 0.95 1.05 1.15 1.35 1.55 1.8
    max   0.8 1 1.25 1.4 1.5 1.7 1.95 2.2
    y max Type C 2 2.6 3.2 3.5 3.7 4.3 5 6
    Type F 1.6 2.1 2.5 2.7 2.8 3.2 3.6 3.6
    Weight of per 1000 steel products(kg)

     

     

    Packaging & Shipping

    Installation Instructions

    Certifications

    Company Profile

    ZheJiang Gentleman hardware Co., Ltd. always adhere to the principle of leading technology, quality first, customer first, and grow together with our partners around the world. Besides DIN standard products we supply also ex stock according to ISO, UNC, UNF, BSW (whit worth), BSF, ASTM and ANSI standards. Above all, our well known specialty is the delivery of deviating sizes and materials to sample or drawing. All Metal is known in the market as the specialist for special fasteners.
    Hexagon head bolts and socket cap screws are also standard available in the higher grades 10.9 and 12.9. The plating company guarantees excellent finished products: electrolytic (blue, yellow or black passivized) and hot dip galvanizing are the most common standard surface treatments. But also e.g. The best surface treatment of Greencate may be applied.
    Besides our focus on the machine and equipment construction we deliver to a great variety of industries like shipbuilding, petrochemical industry, furniture and electronically manufacturing. We can produce quickly in relatively small series for our Cooperation partner worldwide.
    Our international trade company is located in ZheJiang city which is very close to the ZheJiang seaport and airport, can save a lot of transportation and time costs. And our Technical Engineer have 34 years’ experience in fasteners, these are how we keep superior quality and competitive offers for global valued customers.
    We have good reputation in fasteners field with our long business customers because we always adhere to the principle of leading technology, quality first, customer first, and grow together with our partners around the world.
    And i have been in the import and export industry for more than 15 years then can save costs from transportation, products, etc., while controlling product quality, so that you can achieve your company target.

    FAQ

    Q:Are you a manufacturing company or trading company? 
    A: Our factory are specialized in manufacturing fasteners more than 40 years and our sales company have exporting experience for more than 16 years.

    Q: Wonder if you accept small orders?
    A: Do not worry. Please feel free to contact us, in order to give our clients more convenience, we accept small order.

    Q: How can I get a sample to check your quality?
    A: After price is confirmed, you can require samples to check our quality. Free for stock samples, but freight collect. For sample making, we will charge a sample fee. Sample fee will be confirmed according to the products’ craftwork.

    Q: How can I customize my products? 
    A: Attach your drawings with details. (Surface, treatment, material, quantity and special requirements etc.) . And we can print your logo according to your request and Brand Authorization Letter

    Q: How long is your delivery time?
    A: Generally it is 5-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.

    Q: What is your payment term?
    A: Payment=2000USD, 30%-70% T/T in advance (depending on different situations.), balance before shipment.

    Q: What’s your packing?
    A: Our Normal packing is bulking in Cartons, 20-25kgs/carton, 36cartons/ pallet. We also can pack products according to your requirement.

    Q: Do you have after-sales service?
    A: Certainly, you can contact us at any time. And we are very confident in our products, we pack them very well to make sure the goods in well protection to avoid any subsequent trouble regarding quality issue, we suggest you check the goods once you receive them. If there is any transport damaged or quality issue, don’t forget take the detail pictures and contact us as soon as possible, we will properly handle it to make sure your loss to reduce to the smallest. if it is our problem we will responsible for it.

    Please feel free to contact us for detailed information.

    Screw Shaft Types and Uses

    Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.
    screwshaft

    Major diameter of a screw shaft

    A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
    The major diameter of a screw shaft is the greater of its 2 outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
    Another important measurement is the pitch. This measures the distance between 1 thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in 1 turn. While lead and pitch are 2 separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
    There are 3 different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
    The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from 1 manufacturer to another, so it’s important to know what size screw you’re looking for.
    In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.
    screwshaft

    Material of a screw shaft

    A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
    The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than 1 made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
    The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each 1 will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
    A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
    A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between 2 and 16 millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are 2 basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
    Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.
    screwshaft

    Function of a screw shaft

    When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
    Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
    Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
    Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
    Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
    A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
    Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.

    China Professional Stainless Steel Customized Special Self Tapping Pan Head Screws   with Best SalesChina Professional Stainless Steel Customized Special Self Tapping Pan Head Screws   with Best Sales

    China supplier China Custom 45mm M8 M10 Small 316 Open Eyes Hook Screw DIN580 Metal Stainless Steel Self Tapping Sheep Eye Screws near me manufacturer

    Product Description

    Sample Provide
    Size M3-M24
    Material Stainless steel/Steel
    type Self Drilling Screws
    Coating Zinc,Black/Grey phosphate, nickel, docromet, ruspert, black oxide,wax etc

    Q1.What is your main products?
    A1:Our main products are fasteners and hardware parts: bolts, screws, rods, nuts, washers,anchors,rivets in steel and stainless
    steel etc.Hardware parts such as solar panel hardware,HVAC accessores and floor drains parts.
    Q2. How to ensure that every process’s quality?
    A2:HangZhou CZPT owns its professional laboratory to make sure each shipment we made with qualified products.
    Q3.How long is your delivery time?
    A3:Our delivery time is generally 15 to 30 days, according to the quantity of order.
    Q4.The anchor bolt do you have in stock ?
    A4:Yes ,we have.
    Q5.Can you provide a sample?
    Q5:Yes, we can provide free sample.

    Screw Shaft Types

    A screw shaft is a cylindrical part that turns. Depending on its size, it is able to drive many different types of devices. The following information outlines the different types of screws, including their sizes, material, function, and applications. To help you select the right screw shaft, consider the following factors:
    screwshaft

    Size

    A screw can come in a variety of shapes and sizes, ranging from a quarter to a quarter-inch in diameter. A screw is a cylindrical shaft with an inclined plane wrapped around it, and its main function is to fasten objects together by translating torque into a linear force. This article will discuss the dimensions of screws and how to determine the size of a screw. It is important to note that screw sizes can be large and small depending on the purpose.
    The diameter of a screw is the diameter of its shaft, and it must match the inner diameter of its nuts and washers. Screws of a certain diameter are also called machine screws, and they can be larger or smaller. Screw diameters are measured on the shaft underneath the screw head. The American Society of Mechanical Engineers (ASME) standardized screw diameters in 3/50-inch to 16 (3/8-inch) inches, and more recently, sizes were added in U.S. fractions of an inch. While shaft and head diameters are standardized, screw length may vary from job to job.
    In the case of the 2.3-mm screw group, the construct strength was not improved by the 1.2-mm group. The smaller screw size did not increase the strength of the construct. Further, ABS material did not improve the construct strength. Thus, the size of screw shaft is an important consideration in model design. And remember that the more complex your model is, the larger it will be. A screw of a given size will have a similar failure rate as a screw of a different diameter.
    Although different screw sizes are widely used, the differences in screw size were not statistically significant. Although there are some limitations, screws of different sizes are generally sufficient for fixation of a metacarpal shaft fracture. However, further clinical studies are needed to compare screw sizes for fracture union rates. So, if you are unsure of what size of screw shaft you need for your case, make sure to check the metric chart and ensure you use the right one.
    screwshaft

    Material

    The material of a screw shaft plays an important role in the overall performance of a screw. Axial and central forces act to apply torque to the screw, while external forces, such as friction, exert a bending moment. The torsional moments are reflected in the torque, and this causes the screw to rotate at a higher rate than necessary. To ensure the longevity of the screw, the material of the screw shaft should be able to handle the bending moment, while the diameter of the shaft should be small enough to avoid causing damage.
    Screws are made from different metals, such as steel, brass, titanium, and bronze. Manufacturers often apply a top coating of chromium, brass, or zinc to improve corrosion resistance. Screws made of aluminum are not durable and are prone to rusting due to exposure to weather conditions. The majority of screw shafts are self-locking. They are suited for many applications, including threaded fasteners, C-clamps, and vises.
    Screws that are fabricated with conical sections typically feature reduced open cross-sectional areas at the discharge point. This is a key design parameter of conical screw shafts. In fact, reductions of up to 72% are common across a variety of applications. If the screw is designed to have a hard-iron hanger bearing, it must be hardened. If the screw shaft is not hardened, it will require an additional lubricant.
    Another consideration is the threads. Screw shafts are typically made of high-precision threads and ridges. These are manufactured on lathes and CNC machines. Different shapes require different materials. Materials for the screw shaft vary. There are many different sizes and shapes available, and each 1 has its own application. In addition to helical and conical screw shafts, different materials are also available. When choosing material, the best 1 depends on the application.
    The life of the screw depends on its size, load, and design. In general, the material of the screw shaft, nut body, and balls and rollers determine its fatigue life. This affects the overall life of the screw. To determine whether a specific screw has a longer or shorter life, the manufacturer must consider these factors, as well as the application requirements. The material should be clean and free of imperfections. It should be smooth and free of cracks or flaking, which may result in premature failure.

    Function

    The function of a screw shaft is to facilitate the rotation of a screw. Screws have several thread forms, including single-start, double-start and multi-start. Each form has its own advantages and disadvantages. In this article we’ll explore each of them in detail. The function of a screw shaft can vary based on its design, but the following are common types. Here are some examples of screw shaft types and their purposes.
    The screw’s torque enables it to lift objects. It can be used in conjunction with a bolt and nut to lift a load. Screws are also used to secure objects together. You can use them in screw presses, vises, and screw jacks. But their primary function is to hold objects together. Listed below are some of their main functions. When used to lift heavy loads, they can provide the required force to secure an object.
    Screws can be classified into 2 types: square and round. Square threads are more efficient than round ones because they apply 0deg of angle to the nut. Square threads are also stronger than round threads and are often used in high-load applications. They’re generally cheaper to manufacture and are more difficult to break. And unlike square threads, which have a 0deg thread angle, these threads can’t be broken easily with a screwdriver.
    A screw’s head is made of a series of spiral-like structures that extend from a cylindrical part to a tip. This portion of the screw is called the shank and is made of the smallest area. The shank is the portion that applies more force to the object. As the shaft extends from the head, it becomes thinner and narrow, forming a pointed tip. The head is the most important part of the screw, so it needs to be strong to perform its function.
    The diameter of the screw shaft is measured in millimeters. The M8 screw has a thread pitch of 1.25 mm. Generally, the size of the screw shaft is indicated by the major and minor diameter. These dimensions are appended with a multiplication sign (M8x1).
    screwshaft

    Applications

    The design of screws, including their size and shape, determines their critical rotating speeds. These speeds depend on the threaded part of the screw, the helix angle, and the geometry of the contact surfaces. When applied to a screw, these limits are referred to as “permissible speed limits.” These maximum speeds are meant for short periods of time and optimized running conditions. Continuous operation at these speeds can reduce the calculated life of a nut mechanism.
    The main materials used to manufacture screws and screw shafts include steel, stainless steel, titanium, bronze, and brass. Screws may be coated for corrosion resistance, or they may be made of aluminium. Some materials can be threaded, including Teflon and nylon. Screw threads can even be molded into glass or porcelain. For the most part, steel and stainless steel are the most common materials for screw shafts. Depending on the purpose, a screw will be made of a material that is suitable for the application.
    In addition to being used in fasteners, screw shafts are used in micrometers, drillers, conveyor belts, and helicopter blades. There are numerous applications of screw shafts, from weighing scales to measuring lengths. If you’re in the market for a screw, make sure to check out these applications. You’ll be happy you did! They can help you get the job done faster. So, don’t delay your next project.
    If you’re interested in learning about screw sizing, then it’s important to know the axial and moment loads that your screws will experience. By following the laws of mechanics and knowing the load you can calculate the nominal life of your screw. You can also consider the effect of misalignment, uneven loading, and shocks on your screw. These will all affect the life of your screw. Then, you can select the right screw.

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    China supplier 1/2″ Inch Size Stainless Steel Security Self Tapping Screws with Best Sales

    Product Description

    1/2″ Inch size stainless steel Security self tapping Screws

     
    SAMPLE CHARGE:

    1.Samples charge:  According to your request.  Sampling time:5-7days                      
    2.Samples charge: Free for Existing Mold.    Sampling time:3days

    ADVANTAGES:
    1.Rapid Response;   
    2.Shortest Delivery; 
    3.Low MOQ;   

    CHEMICAL COMPONENTS
    Material Si  Mn  Ni Cr Mo Others
    201 0.15 1 5.5-7.5 0.06 0.03 3.5-5.5 16-18   N≤0.25
    304 0.08 1 2 0.045 0.03 8.0-10.0 18-20    
    304L 0.03 1 2 0.045 0.03 8.0-12.0 18-20    
    321 0.08 1 2 0.045 0.03 8.0-13.0 17-19   Ti≤5*C%
    316 0.08 1 2 0.045 0.03 10.0-14.0 16-18 2-3  
    316L 0.03 1 2 0.045 0.03 10.0-15.0 16-18 2-3  
    309S 0.08 1 2 0.045 0.03 12.0-15.0 22-24    
    410 0.15   1   0.03 11.5-13.5    
    420 0.26-0.4   1   0.03 12-14    
    430 0.12 0.75 1 0.04 0.03 16-18    

     

    FAQ:
     

    Q: Are you trading company or manufacturer ?

    A: We are manufacturer .

    Q: How long is your delivery time?

    A: Generally it is 7-15 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to specific item and quantity.

    Shortest Delivery: We have large stock, 3 days for stock items,7-15days for production. 

    Q: Do you provide samples ? is it free or extra ?

    A: Yes, we could offer the sample for free charge but do not pay the shipping cost.
    Q: What is your terms of payment ?
    A: Less than USD5000———–100% T/T in advance.
        More than USD5000———–50% T/T in advance ,balance before shippment.
        Other terms is welcome.   

    Q: What is your price terms ?
    A: EXW/FOB/CIF/CFR/FCA/CPT/CIP/DAP/DDP

    Q:What’s your product range?
    A:  Our product range includes screws, nuts, knobs, bolts, washers, rivet, anchor and CNC parts. We strictly implement various quality standards like GB, ISO, DIN, JIS, AISI NFE and BSW.Non-standard products also accepted.

    Q:Why should I choose you? What’s your advantages? Industries you are serving?
    A: We are a professional manufacturer and have many years production and management experience in the field of fasteners .We can provide our customers with a good solution in the area of production design, production process,packaging and after-sale service.Customer satisfaction is our sole pursuit.

    What Are Screw Shaft Threads?

    A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.
    screwshaft

    Coefficient of friction between the mating surfaces of a nut and a screw shaft

    There are 2 types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
    The 2 types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
    In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
    The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.

    Helix angle

    In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are 2 types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
    A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in 2 stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
    High helix screws have large leads, sometimes up to 6 times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
    If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.
    screwshaft

    Thread angle

    The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
    Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
    Helix angle and thread angle are 2 different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
    Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.

    Material

    Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each 1 is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
    Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
    Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
    Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.
    screwshaft

    Self-locking features

    Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the 2 materials.
    One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
    A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
    Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.

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    China high quality Made in China Eyes Hook Screw Metal Stainless Steel Self Tapping Screws Eye Screws wholesaler

    Product Description

    Made in China Eyes Hook Screw Metal Stainless Steel Self Tapping Screws Eye Screws

    Item Eye Screw
    Size M3-M30
    Length 5-200mm
    Material Stainless Steel
    Surface Passivation, Plain
    Packaging Carton Box / Bag +Pallet
    Standard DIN, GB,ASME/ANSI,JIS, BSW, ISO
    Delivery Time 3-15 days
    OEM Available

     

    Bolt Screw Nut Washer
    Rivet Anchor Pin  Hex Bolt
    Drywall Screw Hex Nut Wedge Anchor Flat Washer  

    Q: What’s your product range?
    A: Our product cover Bolts, Screws, Nuts, Washers, Spring ,Rivet, Anchor, Nail, CNC parts and so on.

    Q: How long is your delivery time?
    A: 3 days for stock items,7-15 days for production.

    Q: How do you control your quality.
    A: QC on-line inspection and final inspection before delivery. 6S management. MTC and Quality Report can be provide.

    Q: Could you provide free samples?
    A: Yes, we could offer free samples for the items in stock, just need to pay shipping cost, it can be refunded to your orders.

    Q: Do you accept small order?
    A: Sure, we can accept small orders if we have stock of the specification which you need..

    Q: What is your packing ?
    A: 20-25kg for 1 carton,36 or 48 cartons for 1 pallet. One pallets is about 900-960kg. Customized carton and Customer’s logo is available. 

    Q: What is your payment term?
    A: We can accept T/T, L/C for bulk order. Paypal and Western Union for small order or sample order.
    Made-in-China Online payment is available.

    Q: Do you accept customized order?
    A: Yes, we can produce according to sample or drawing.

    Screw Shaft Features Explained

    When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

    Threads

    The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
    The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
    The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
    screwshaft

    Lead

    In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
    A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
    When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

    Pitch

    The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
    A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
    The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

    Helix angle

    The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
    High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
    A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
    screwshaft

    Size

    The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
    Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
    In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
    screwshaft

    Shape

    Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
    The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
    The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

    Lubrication

    In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
    When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
    Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

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