Product Description
| Color | Multicolor |
| Material | Iron |
| Finish Type | Plated |
| Mounting Type | Wall Mount |
About this item
- Material: iron
- Size: 4 x 8 mm (L x W)
- Packages: 500 pieces, random color delivery
- Easy to install, each screw has a round hole at the top, can be placed on an object, and then made into a bracelet through the rope, easy to store and carry
- Suitable for DIY jewelry, necklaces, bracelets, earrings, hanging photos, clay sculptures, wood tags, Christmas tree ornaments and other wood crafts, etc.
Main products
About us
ZheJiang Hongniu Automotive Parts Co., Ltd. was founded in June 2000. Located in Tangzhuang Town, the eastern suburbs of the historic and cultural city of HangZhou, with convenient transportation. The company covers an area of 35000 square CHINAMFG and currently has over 300 employees, including 70 high-level and intermediate professional and technical personnel. Registered capital of 20 million yuan, total assets of 78 million yuan, and fixed assets of 56 million yuan. Main products: Series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc. Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc. We have maintained good cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly favored by our customers with our good reputation and excellent quality.
FAQ
Q1: What is your main products?
A1: Our main sale products: series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc.
Q2: How long is your delivery time?
A2: Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.
Q3: What is your payment method?
A3: 30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 5000USD, would suggest you pay 100% inadvance to reduce the bank charges.
Q4: Can you provide a sample?
A4: Sure, Our sample is provided free of charge, but not including courier fees.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.
/* May 10, 2571 16:49:51 */!function(){function d(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
How do electronic or computer-controlled systems integrate with eye bolt screws in modern applications?
In modern applications, electronic or computer-controlled systems can integrate with eye bolt screws to enhance functionality, monitoring, and control. The integration of electronic or computer-controlled systems with eye bolt screws enables advanced features such as automation, real-time monitoring, data recording, and remote control. Here’s a detailed explanation of how these systems integrate with eye bolt screws:
- Sensor Integration: Electronic systems can incorporate sensors that are directly integrated with eye bolt screws to monitor various parameters such as load, tension, strain, or vibration. These sensors can provide real-time data on the performance and condition of the screws, allowing for continuous monitoring and early detection of potential issues.
- Data Acquisition: Computer-controlled systems can gather data from the sensors integrated with eye bolt screws, capturing information such as load measurements, operating conditions, or environmental factors. This data can be stored for analysis, used for predictive maintenance, or integrated into larger control systems for process optimization.
- Automation and Actuation: Electronic or computer-controlled systems can automate the operation of eye bolt screws, enabling precise and consistent control. Through programmable logic controllers (PLCs), motor drives, or other control mechanisms, these systems can regulate the tightening or loosening of the screws, adjust the applied load, or control the positioning of the connected components.
- Remote Control and Monitoring: Integration with electronic systems enables remote control and monitoring of eye bolt screws. Through network connectivity and communication protocols, the screws can be remotely accessed and controlled, allowing for adjustments, troubleshooting, or data retrieval from a central control station or even through mobile devices.
- Integration with Overall System Control: In complex systems, such as industrial machinery or automated manufacturing processes, eye bolt screws can be integrated into the overall control architecture. This integration allows for synchronization with other components, coordination with motion control systems, or integration with higher-level control algorithms.
- Alerts and Alarms: Electronic systems can be programmed to generate alerts or alarms based on predefined thresholds or abnormal conditions detected in the eye bolt screws. These notifications can be sent to operators or maintenance personnel, enabling proactive actions to address potential issues and prevent failures.
The integration of electronic or computer-controlled systems with eye bolt screws brings several advantages, including improved accuracy, increased efficiency, enhanced safety, and the ability to gather valuable data for analysis and optimization. However, it is important to ensure that the electronic components and systems are properly designed, tested, and protected against environmental factors, vibrations, or electrical interference to ensure reliable operation.
Overall, the integration of electronic or computer-controlled systems with eye bolt screws represents a significant advancement in modern applications, providing increased control, monitoring, and intelligence for improved performance and operational efficiency.
What factors should be considered when selecting eye bolt screws for specific applications?
When selecting eye bolt screws for specific applications, several factors need to be considered to ensure the appropriate choice that meets the requirements of the application. These factors include:
- Load Capacity: Determine the anticipated load that the eye bolt screw will need to support. Consider both the static and dynamic loads, as well as any potential shock or impact loads. Choose an eye bolt screw with a load capacity that exceeds the expected loads to provide a safety margin.
- Material Strength: Evaluate the strength properties required for the application. Eye bolt screws are available in various materials, such as steel, stainless steel, or other alloys. Consider factors such as tensile strength, yield strength, and hardness to ensure the selected eye bolt screw can withstand the applied loads without deformation or failure.
- Corrosion Resistance: Assess the environmental conditions in which the eye bolt screw will be used. If the application involves exposure to moisture, chemicals, or corrosive elements, choose eye bolt screws with corrosion-resistant materials or coatings, such as stainless steel or galvanized steel, to prevent premature corrosion and maintain the integrity of the screw.
- Thread Type: Consider the type of thread required for the specific application. Eye bolt screws may have different thread types, such as coarse threads or fine threads. Coarse threads provide quicker installation and higher resistance to vibrational loosening, while fine threads offer finer adjustments and increased holding power.
- Attachment Point: Determine the method of attachment and the hardware that will be connected to the eye bolt screw. Consider the size and shape of the eye to ensure compatibility with the intended hardware, such as ropes, cables, or chains. The eye should provide a secure and properly fitting attachment point to minimize the risk of slippage or failure.
- Regulatory Compliance: Check if there are specific industry standards, regulations, or certifications that the eye bolt screw needs to meet. Industries such as construction, marine, or aerospace may have specific requirements for eye bolt screws. Ensure that the selected eye bolt screw complies with the relevant standards and regulations to ensure safety and reliability.
- Installation Method: Consider the installation method and the available equipment for installing the eye bolt screw. Some applications may require specific tools or techniques for proper installation. Ensure that the selected eye bolt screw can be easily installed using the available resources without compromising the installation quality.
By carefully considering these factors, you can select the most suitable eye bolt screws for specific applications. It is important to consult with industry professionals, engineers, or manufacturers to ensure that the chosen eye bolt screws meet the specific requirements and provide a reliable and safe solution for the intended application.
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:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
<img src="https://img.hzpt.com/img/screwshaft/Honeyview_screwshaft-l1.webp" alt="China wholesaler Small Screw Eye Pins Colorful Jewelry Eye Hooks Eye Screw Clasp Self Tapping Screws Mini Hoop Peg Craft Eyelet Screws “><img src="https://img.hzpt.com/img/screwshaft/Honeyview_screwshaft-l2.webp" alt="China wholesaler Small Screw Eye Pins Colorful Jewelry Eye Hooks Eye Screw Clasp Self Tapping Screws Mini Hoop Peg Craft Eyelet Screws “>
editor by Dream 2024-10-23
China best Wooden Round Head Screw Eye Metal Stainless Steel Screw Eye Hooks 25mm Pins Mini 6X13 Hooks 4mm 7mm Loop Self-Tapping Eye Screw Made in China
Product Description
Made in China Wooden round head screw eye metal stainless steel screw eye hooks 25mm pins mini 6×13 hooks 4mm 7mm loop self-tapping eye screw
| 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.
/* 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, BSW, JIS, GOST |
| Grade: | A2-70, A4-80 |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|
Can eye bolt screws be customized for specific load capacities or applications?
Yes, eye bolt screws can be customized to meet specific load capacities or applications. Customization allows for the adaptation of eye bolt screws to suit the unique requirements of different industries, environments, and lifting or rigging operations. Here’s a detailed explanation:
Load Capacity Customization:
Eye bolt screws can be customized to accommodate specific load capacities by adjusting their design and material properties. The load capacity of an eye bolt screw is influenced by factors such as the diameter, thread pitch, material strength, and the mode of loading (tension, shear, or bending). By considering these factors, engineers can tailor the design and specifications of the eye bolt screws to achieve the desired load capacity.
Load capacity customization may involve:
- Choosing Appropriate Materials: Eye bolt screws can be manufactured from a variety of materials, including steel, stainless steel, alloys, or non-metallic composites. The selection of materials with higher tensile strength or specific load-bearing properties can enhance the load capacity of the eye bolt screws.
- Modifying Dimensions: By adjusting the diameter, thread size, or shank length of the eye bolt screws, engineers can optimize their load-carrying capabilities. Increasing the cross-sectional area or altering the thread profile can enhance the strength and load capacity of the screws.
- Consideration of Thread Engagement: The length and depth of engagement between the eye bolt screw and the receiving component can impact the load capacity. Customization may involve ensuring adequate thread engagement to maximize the load-carrying capability and prevent thread stripping or failure.
Application-Specific Customization:
Eye bolt screws can also be customized to suit specific applications or operational requirements. Different industries and applications may have unique needs that require customized eye bolt screws. Some examples of application-specific customization include:
- Coatings and Surface Treatments: Eye bolt screws can be customized with coatings or surface treatments to enhance their performance in specific environments. For instance, coatings like zinc plating, galvanizing, or epoxy coatings can provide corrosion resistance, chemical resistance, or improve friction characteristics.
- Specialized Threads: Certain applications may require specialized thread forms or configurations, such as fine threads, coarse threads, or special thread profiles. Customizing the threading of eye bolt screws can ensure compatibility with specific components or facilitate easier installation or removal.
- Special Features: Eye bolt screws can be customized with special features to meet unique application requirements. This may include the addition of swiveling mechanisms, locking mechanisms, or other attachment points to enhance functionality or ease of use.
By customizing eye bolt screws for specific load capacities or applications, engineers can optimize their performance, safety, and reliability. It is important to work with experienced manufacturers or suppliers who can provide guidance and expertise in customizing eye bolt screws based on the specific requirements of the intended application.
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.
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:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
editor by CX 2024-03-29
China best OEM Factory Steel Metric Threaded Eye Expansion Bolt Wholesales I Hook Screw Mini Eye Screws
Product Description
| Material | Stainless Steel 201, 665, 667, 304, 316, etc |
| Standard | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc |
| Non-standards | OEM is available, according to drawing or samples |
| Finish | Plain/according to your requirement |
| Package | According to customers requirement |
Q1: What is your main products?
A1: Our main products are fasteners: bolts, screws, rods, nuts, washers, anchors and rivets.Meantime, our company also produces stamping parts and machined parts.
Q2: How long is your delivery time?
A2: Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.
Q3: What is your payment method?
A3: 50% value of T/T in advance and other 50% balance on B/L copy. For small order less than1000USD, would suggest you pay 100% in advance to reduce the bank charges.
Q4: Can you provide a sample?
A4: Sure, Our sample is provided free of charge, but not including courier fees.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.
/* 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(/(.*?):(.*)$/))&&1
| Material: | Stainless Steel |
|---|---|
| Type: | Eye Head |
| Connection: | Common Bolt |
| Head Style: | Eye Head |
| Standard: | DIN, ANSI, GB, JIS, BSW, GOST |
| Grade: | All |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|
Can eye bolt screws be customized for specific load capacities or applications?
Yes, eye bolt screws can be customized to meet specific load capacities or applications. Customization allows for the adaptation of eye bolt screws to suit the unique requirements of different industries, environments, and lifting or rigging operations. Here’s a detailed explanation:
Load Capacity Customization:
Eye bolt screws can be customized to accommodate specific load capacities by adjusting their design and material properties. The load capacity of an eye bolt screw is influenced by factors such as the diameter, thread pitch, material strength, and the mode of loading (tension, shear, or bending). By considering these factors, engineers can tailor the design and specifications of the eye bolt screws to achieve the desired load capacity.
Load capacity customization may involve:
- Choosing Appropriate Materials: Eye bolt screws can be manufactured from a variety of materials, including steel, stainless steel, alloys, or non-metallic composites. The selection of materials with higher tensile strength or specific load-bearing properties can enhance the load capacity of the eye bolt screws.
- Modifying Dimensions: By adjusting the diameter, thread size, or shank length of the eye bolt screws, engineers can optimize their load-carrying capabilities. Increasing the cross-sectional area or altering the thread profile can enhance the strength and load capacity of the screws.
- Consideration of Thread Engagement: The length and depth of engagement between the eye bolt screw and the receiving component can impact the load capacity. Customization may involve ensuring adequate thread engagement to maximize the load-carrying capability and prevent thread stripping or failure.
Application-Specific Customization:
Eye bolt screws can also be customized to suit specific applications or operational requirements. Different industries and applications may have unique needs that require customized eye bolt screws. Some examples of application-specific customization include:
- Coatings and Surface Treatments: Eye bolt screws can be customized with coatings or surface treatments to enhance their performance in specific environments. For instance, coatings like zinc plating, galvanizing, or epoxy coatings can provide corrosion resistance, chemical resistance, or improve friction characteristics.
- Specialized Threads: Certain applications may require specialized thread forms or configurations, such as fine threads, coarse threads, or special thread profiles. Customizing the threading of eye bolt screws can ensure compatibility with specific components or facilitate easier installation or removal.
- Special Features: Eye bolt screws can be customized with special features to meet unique application requirements. This may include the addition of swiveling mechanisms, locking mechanisms, or other attachment points to enhance functionality or ease of use.
By customizing eye bolt screws for specific load capacities or applications, engineers can optimize their performance, safety, and reliability. It is important to work with experienced manufacturers or suppliers who can provide guidance and expertise in customizing eye bolt screws based on the specific requirements of the intended application.
What safety guidelines should be followed when using eye bolt screws in lifting applications?
When using eye bolt screws in lifting applications, it is crucial to follow specific safety guidelines to ensure the safety of personnel, prevent accidents, and maintain the integrity of the lifting operation. Here are some important safety guidelines to consider:
- Proper Selection: Choose eye bolt screws that are appropriate for the intended lifting application. Consider factors such as load capacity, material strength, corrosion resistance, and compliance with relevant standards to ensure the selected eye bolt screws can safely handle the expected loads and environmental conditions.
- Inspect Regularly: Regularly inspect eye bolt screws for any signs of damage, wear, or deformation. Inspections should be carried out before each use and periodically during the service life of the eye bolt screws. If any defects or issues are identified, the eye bolt screws should be replaced or repaired before further use.
- Proper Installation: Follow the manufacturer’s instructions for the proper installation of eye bolt screws. Ensure that the eye bolt screws are securely and correctly installed in a compatible structure or support system. Pay attention to the recommended torque values and installation techniques to achieve proper engagement and load distribution.
- Load Calculation: Determine the load requirements and calculate the appropriate load capacity for the eye bolt screws. Avoid overloading the eye bolt screws beyond their rated capacity, as this can lead to failure and unsafe lifting conditions. Consider dynamic loads, shock loads, and any other relevant factors in the load calculation.
- Use Proper Hardware: Select and use appropriate hardware, such as shackles, hooks, or connectors, that are compatible with the eye bolt screws and the lifting equipment being used. Make sure the hardware is in good condition, properly rated for the loads involved, and securely attached to the eye bolt screws.
- Avoid Side Loading: Eye bolt screws should be used in a manner that avoids side loading. Side loading, which occurs when the load is applied at an angle to the axis of the eye bolt screw, can significantly reduce its load capacity and lead to failure. Ensure that the load is applied in line with the axis of the eye bolt screws.
- Regular Maintenance: Implement a routine maintenance program to ensure the ongoing safety and reliability of the eye bolt screws. This may include lubrication, cleaning, and periodic inspections to identify any signs of wear, corrosion, or other issues that could compromise the integrity of the eye bolt screws.
- Training and Awareness: Provide proper training and awareness to personnel involved in the lifting operation. Ensure that they understand the safe and proper use of eye bolt screws, including the importance of load limits, inspection procedures, and adherence to safety guidelines. Promote a culture of safety and encourage reporting of any concerns or incidents.
- Compliance with Standards: Familiarize yourself with relevant industry standards, regulations, and guidelines pertaining to lifting operations and eye bolt screws. Ensure that the selected eye bolt screws and the lifting operation comply with these standards to maintain safety and legal compliance.
By following these safety guidelines, you can minimize the risk of accidents, prevent equipment failures, and ensure the safe and efficient use of eye bolt screws in lifting applications.
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:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
editor by CX 2024-03-07
China Standard Made in China Wooden Round Head Screw Eye Metal Stainless Steel Screw Eye Hooks 25mm Pins Mini 6X13 Hooks 4mm 7mm Loop Self-Tapping Eye Screw near me manufacturer
Product Description
Made in China Wooden round head screw eye metal stainless steel screw eye hooks 25mm pins mini 6×13 hooks 4mm 7mm loop self-tapping eye screw
| 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.
The Four Basic Components of a Screw Shaft
There are 4 basic components of a screw shaft: the Head, the Thread angle, and the Threaded shank. These components determine the length, shape, and quality of a screw. Understanding how these components work together can make purchasing screws easier. This article will cover these important factors and more. Once you know these, you can select the right type of screw for your project. If you need help choosing the correct type of screw, contact a qualified screw dealer.
Thread angle
The angle of a thread on a screw shaft is the difference between the 2 sides of the thread. Threads that are unified have a 60 degree angle. Screws have 2 parts: a major diameter, also known as the screw’s outside diameter, and a minor diameter, or the screw’s root diameter. A screw or nut has a major diameter and a minor diameter. Each has its own angle, but they all have 1 thing in common – the angle of thread is measured perpendicularly to the screw’s axis.
The pitch of a screw depends on the helix angle of the thread. In a single-start screw, the lead is equal to the pitch, and the thread angle of a multiple-start screw is based on the number of starts. Alternatively, you can use a square-threaded screw. Its square thread minimizes the contact surface between the nut and the screw, which improves efficiency and performance. A square thread requires fewer motors to transfer the same load, making it a good choice for heavy-duty applications.
A screw thread has 4 components. First, there is the pitch. This is the distance between the top and bottom surface of a nut. This is the distance the thread travels in a full revolution of the screw. Next, there is the pitch surface, which is the imaginary cylinder formed by the average of the crest and root height of each tooth. Next, there is the pitch angle, which is the angle between the pitch surface and the gear axis.
Head
There are 3 types of head for screws: flat, round, and hexagonal. They are used in industrial applications and have a flat outer face and a conical interior. Some varieties have a tamper-resistant pin in the head. These are usually used in the fabrication of bicycle parts. Some are lightweight, and can be easily carried from 1 place to another. This article will explain what each type of head is used for, and how to choose the right 1 for your screw.
The major diameter is the largest diameter of the thread. This is the distance between the crest and the root of the thread. The minor diameter is the smaller diameter and is the distance between the major and minor diameters. The minor diameter is half the major diameter. The major diameter is the upper surface of the thread. The minor diameter corresponds to the lower extreme of the thread. The thread angle is proportional to the distance between the major and minor diameters.
Lead screws are a more affordable option. They are easier to manufacture and less expensive than ball screws. They are also more efficient in vertical applications and low-speed operations. Some types of lead screws are also self-locking, and have a high coefficient of friction. Lead screws also have fewer parts. These types of screw shafts are available in various sizes and shapes. If you’re wondering which type of head of screw shaft to buy, this article is for you.
Threaded shank
Wood screws are made up of 2 parts: the head and the shank. The shank is not threaded all the way up. It is only partially threaded and contains the drive. This makes them less likely to overheat. Heads on wood screws include Oval, Round, Hex, Modified Truss, and Flat. Some of these are considered the “top” of the screw.
Screws come in many sizes and thread pitches. An M8 screw has a 1.25-mm thread pitch. The pitch indicates the distance between 2 identical threads. A pitch of 1 is greater than the other. The other is smaller and coarse. In most cases, the pitch of a screw is indicated by the letter M followed by the diameter in millimetres. Unless otherwise stated, the pitch of a screw is greater than its diameter.
Generally, the shank diameter is smaller than the head diameter. A nut with a drilled shank is commonly used. Moreover, a cotter pin nut is similar to a castle nut. Internal threads are usually created using a special tap for very hard metals. This tap must be followed by a regular tap. Slotted machine screws are usually sold packaged with nuts. Lastly, studs are often used in automotive and machine applications.
In general, screws with a metric thread are more difficult to install and remove. Fortunately, there are many different types of screw threads, which make replacing screws a breeze. In addition to these different sizes, many of these screws have safety wire holes to keep them from falling. These are just some of the differences between threaded screw and non-threaded. There are many different types of screw threads, and choosing the right 1 will depend on your needs and your budget.
Point
There are 3 types of screw heads with points: cone, oval, and half-dog. Each point is designed for a particular application, which determines its shape and tip. For screw applications, cone, oval, and half-dog points are common. Full dog points are not common, and they are available in a limited number of sizes and lengths. According to ASTM standards, point penetration contributes as much as 15% of the total holding power of the screw, but a cone-shaped point may be more preferred in some circumstances.
There are several types of set screws, each with its own advantage. Flat-head screws reduce indentation and frequent adjustment. Dog-point screws help maintain a secure grip by securing the collar to the screw shaft. Cup-point set screws, on the other hand, provide a slip-resistant connection. The diameter of a cup-point screw is usually half of its shaft diameter. If the screw is too small, it may slack and cause the screw collar to slip.
The UNF series has a larger area for tensile stress than coarse threads and is less prone to stripping. It’s used for external threads, limited engagement, and thinner walls. When using a UNF, always use a standard tap before a specialized tap. For example, a screw with a UNF point is the same size as a type C screw but with a shorter length.
Spacer
A spacer is an insulating material that sits between 2 parts and centers the shaft of a screw or other fastener. Spacers come in different sizes and shapes. Some of them are made of Teflon, which is thin and has a low coefficient of friction. Other materials used for spacers include steel, which is durable and works well in many applications. Plastic spacers are available in various thicknesses, ranging from 4.6 to 8 mm. They’re suitable for mounting gears and other items that require less contact surface.
These devices are used for precision fastening applications and are essential fastener accessories. They create clearance gaps between the 2 joined surfaces or components and enable the screw or bolt to be torqued correctly. Here’s a quick guide to help you choose the right spacer for the job. There are many different spacers available, and you should never be without one. All you need is a little research and common sense. And once you’re satisfied with your purchase, you can make a more informed decision.
A spacer is a component that allows the components to be spaced appropriately along a screw shaft. This tool is used to keep space between 2 objects, such as the spinning wheel and an adjacent metal structure. It also helps ensure that a competition game piece doesn’t rub against an adjacent metal structure. In addition to its common use, spacers can be used in many different situations. The next time you need a spacer, remember to check that the hole in your screw is threaded.
Nut
A nut is a simple device used to secure a screw shaft. The nut is fixed on each end of the screw shaft and rotates along its length. The nut is rotated by a motor, usually a stepper motor, which uses beam coupling to accommodate misalignments in the high-speed movement of the screw. Nuts are used to secure screw shafts to machined parts, and also to mount bearings on adapter sleeves and withdrawal sleeves.
There are several types of nut for screw shafts. Some have radial anti-backlash properties, which prevent unwanted radial clearances. In addition, they are designed to compensate for thread wear. Several nut styles are available, including anti-backlash radial nuts, which have a spring that pushes down on the nut’s flexible fingers. Axial anti-backlash nuts also provide thread-locking properties.
To install a ball nut, you must first align the tangs of the ball and nut. Then, you must place the adjusting nut on the shaft and tighten it against the spacer and spring washer. Then, you need to lubricate the threads, the ball grooves, and the spring washers. Once you’ve installed the nut, you can now install the ball screw assembly.
A nut for screw shaft can be made with either a ball or a socket. These types differ from hex nuts in that they don’t need end support bearings, and are rigidly mounted at the ends. These screws can also have internal cooling mechanisms to improve rigidity. In this way, they are easier to tension than rotating screws. You can also buy hollow stationary screws for rotator nut assemblies. This type is great for applications requiring high heat and wide temperature changes, but you should be sure to follow the manufacturer’s instructions.
China Professional Mini Steel Eye Hook Eye Screw for Key Ring Accessories near me manufacturer
Product Description
Product Description:;Eye Screw
| Size | M2,;M3,;M4,;M5,;M6,;M8,;M10,;M12,;.;#4-#12,;1/8-5/8” Non-standard custom made according to drawing or samples |
| Material available | 1.;Stainless Steel:; SS304,; SS316,; SS410 2.;Steel:;C1006,; C1571,;C10B21 |
| Standard | ISO,;GB,;DIN,;JIS,;ANSI,;BSW |
| Style | Pan Head,;Truss Head,;Bind Head,;Flat Head,;Oval Head,;Round Head |
| Lead time | about 10 days after payment confirmed.; |
| Warranty | we confirm our goods will satisfy your request.; |
| Payment terms | T/T,; Western Union,; PayPal etc.; |
1.; Drilling
The Bi-Metal Screws Can Penetrate Into Cooper Plates in 0-12mm directly by using tapping machine and the length of the alloy
steel drilling head also can be designed as different requirement
2.; Tapping
The tapping thread lines in the alloy steel will be more easy to fit the new phatnoma while penetrating into the iron or aluminum
board inside after locate special heat treatment.;
3.; Locking
A2 or A4 stainless steel series strenthen the thread lines by a cold forging treatment during whole process;maintain special corrosion
resistant whithout any heat treatment;screwing in alveolar into fasteners smoothly then finish the fastening combination to achieve excellent
efficacy in resistance to pull out and weatherproof by the way that don’t destroy the thread lines steadily and tightly.;
Application:;
Hot selling metal ring buckle used for the following industry as a great customized,; fashion & high quality accessory:;
A.; Mould
B.; Lamp
C.;Toy
D.;Battery
E.;Car
F.; Gift
G.; Electron
SCREW HEADER SIZE:;
| Head Type | Size(MM); | M2.;0 | M2.;2 | M2.;3 | M2.;5 | M2.;6 | M3.;0 | M3.;5 | M4.;0 | M4.;5 | M5.;0 | M6.;0 | M8.;0 |
| PAN | Mould Diameter | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 18 | 18 | 23 |
| Head Diameter | 3.;5 | 4.;0 | 4.;0 | 4.;1 | 4.;5 | 5.;5 | 6.;0 | 7.;0 | 8.;0 | 9.;0 | 10.;5 | 14.;0 | |
| Pin Width | 2.;2 | 2.;4 | 2.;4 | 2.;6 | 2.;6 | 3.;6 | 3.;6 | 4.;2 | 4.;6 | 4.;9 | 6.;3 | 7.;7 | |
| TRUSS | Mould Diameter | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 18 | 18 | 23 | 23 |
| Head Diameter | 4.;5 | 5.;0 | 5.;2 | 5.;7 | 5.;9 | 6.;9 | 8.;1 | 9.;4 | 10.;6 | 11.;8 | 14.;0 | 17.;8 | |
| Pin Width | 2.;2 | 2.;3 | 2.;4 | 2.;5 | 2.;6 | 3.;5 | 4.;0 | 4.;3 | 4.;7 | 5.;0 | 6.;2 | 7.;7 | |
| BIND | Mould Diameter | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 18 | 23 |
| Head Diameter | 4.;3 | 4.;7 | 4.;9 | 5.;3 | 5.;5 | 6.;3 | 7.;3 | 8.;3 | 9.;3 | 10.;3 | 12.;4 | 16.;4 | |
| Pin Width | 2.;2 | 2.;3 | 2.;4 | 2.;5 | 2.;6 | 3.;5 | 4.;0 | 4.;3 | 4.;7 | 5.;0 | 6.;2 | 7.;7 | |
| FLAT | Mould Diameter | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 18 | 18 |
| Head Diameter | 4.;0 | 4.;4 | 4.;6 | 5.;0 | 5.;2 | 6.;0 | 7.;0 | 8.;0 | 9.;0 | 10.;0 | 12.;0 | 16.;0 | |
| Pin Width | 2.;2 | 2.;4 | 2.;4 | 2.;6 | 2.;6 | 3.;6 | 4.;1 | 4.;5 | 4.;9 | 5.;1 | 6.;6 | 8.;3 | |
| OVAL | Mould Diameter | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 | 18 | 18 | 23 |
| Head Diameter | 4.;0 | 4.;4 | 4.;6 | 5.;0 | 5.;2 | 6.;0 | 7.;0 | 8.;0 | 9.;0 | 10.;0 | 12.;0 | 16.;0 | |
| Pin Width | 2.;4 | 2.;7 | 2.;7 | 2.;9 | 2.;9 | 3.;8 | 4.;3 | 4.;7 | 5.;1 | 5.;3 | 6.;8 | 8.;5 | |
| ROUND | Mould Diameter | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 | 18 | 18 | 18 | 23 |
| Head Diameter | 3.;5 | 4.;0 | 4.;0 | 4.;5 | 4.;5 | 5.;5 | 6.;0 | 7.;0 | 8.;0 | 9.;0 | 10.;5 | 14.;0 | |
| Pin Width | 2.;1 | 2.;3 | 2.;3 | 2.;5 | 2.;5 | 3.;5 | 3.;8 | 4.;1 | 4.;5 | 4.;8 | 6.;1 | 7.;6 |
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.
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.
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.
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.