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China best Factory Wholesale Truss Head Wafer Head Screw Phillips Wafer Head Self Drilling Screw

Product Description

Factory Wholesale Truss Head Wafer Head Screw Phillips Wafer Head Self Drilling Screw

 
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

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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

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.

<img src="https://img.hzpt.com/img/screwshaft/Honeyview_screwshaft-l1.webp" alt="China best Factory Wholesale Truss Head Wafer Head Screw Phillips Wafer Head Self Drilling Screw “><img src="https://img.hzpt.com/img/screwshaft/Honeyview_screwshaft-l2.webp" alt="China best Factory Wholesale Truss Head Wafer Head Screw Phillips Wafer Head Self Drilling Screw “>
editor by Dream 2024-10-30

China Professional Phillips Cross DIN 7991 Countersunk Head Hex Slotted Button Price and High-Quality Machine Screw

Product Description

DIN7991  Hexagon Socket Countersunk bolt

1. Material:Q195/Q235 /10B21 /35K /#45/35Crmo/40Cr/20#/55#/42Crmo/20MnTiB/SS304/SS316 etc
2. Grade: 4.8,8.8,10.9,12.9
3. Size: M5-M100,1/4″-2-1/2″
4. Standard: DIN7991
5. Steel:CarbonSteel or Stainless Steel

 

1.Commodity      Name DIN7991 Socket Countersunk bolt
2.Standard DIN7991
3.Material Carbon Steel,Alloy steel,Stainless steel
4.Grade 8.8 10.9 12.9 or as customer’s requirement
5.Surface  treatment Black,Zinc plated,Plain,Dacromet,Yellow Zinc Plated,HDG etc
6.Size M3-M24or non-standard as request&design
7.Packing By carbon , gunny bagor plastci bag then on wooden pallet or according to client’s requirement
8.Samples samples are free
9.Delivery within 15-30 days after confirm the order
10.Payment Terms T/T  or L/C
11.Place of Origin HangZhou,ZheJiang , China

SIZE M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
d                          
P P 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3
α tol.(+2) 90° 90° 90° 90° 90° 90° 90° 90° 90° 90° 90° 60° 60°
b L≤125 12 14 16 18 22 26 30 34 38 42 46 50 54
125 / / / 24 28 32 36 40 44 48 52 56 60
L>200 / / / / / 45 49 53 57 61 65 69 73
dk max=nominal size 6 8 10 12 16 20 24 27 30 33 36 36 39
Min 5.7 7.64 9.64 11.57 15.57 19.48 23.48 26.48 29.48 32.38 35.38 35.38 38.38
ds max=nominal size 3 4 5 6 8 10 12 14 16 18 20 22 24
Min 2.86 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 17.73 19.67 21.67 23.67
e Min 2.3 2.87 3.44 4.58 5.72 6.86 9.15 11.43 11.43 13.72 13.72 16 16
k max 1.7 2.3 2.8 3.3 4.4 5.5 6.5 7 7.5 8 8.5 13.1 14
s   2 2.5 3 4 5 6 8 10 10 12 12 14 14
Min 2.02 2.52 3.02 4.02 5.02 6.02 8.571 10.571 10.571 12.032 12.032 14.032 14.032
max 2.1 2.6 3.1 4.12 5.14 6.14 8.175 10.175 10.175 12.212 12.212 14.212 14.212
t max=nominal size 1.2 1.8 2.3 2.5 3.5 4.4 4.6 4.8 5.3 5.5 5.9 8.8 10.3
Min 0.95 1.55 2.05 2.25 3.2 4.1 4.3 4.5 5 5.2 5.6 8.44 9.87

Mainly Product:

BOLT : DIN933, DIN931,DIN960,DIN961, DIN912,DIN603,DIN7985,DIN7991,DIN6921, ASME/ANSI B 18.2.1ASME/ANSIB18.2.3.1M,GB, BSW, ISO Hex bolt , carriage bolt, flange head bolt, achor bolt ect
NUT : DIN934,DIN6923,DIN985,DIN982,DIN6923,ISO4032 Hex heavy hex nut, 2H nut,A563/A563M Cap nut,Nylon nut, ect
ROD : Threaded Rod DIN975,DIN976, threaded bar DIN975 stud bolt, B7 stud bolt ect
SCREW :hex screw,DIN912; self drilling screw, DIN7504; self tapping screw,DIN7981/7982; drywall screw, pan head screw, button head screw, machine screw, chipboard screw,furniture screw,wood screw, ect
WASHER : DIN125/ ASME/ANSI B18.22.1 USS/SAE, DIN126, DIN433, DIN440, DIN7349, DIN988, DIN9571,DIN127, lock washer,square washer,spring lock washer, plain washer ect
ANCHOR BOLT:wedge anchor,drop in anchor,Fix-bolt, expansion anchor bolt sleeve,
Window Expansion Anchor etc

/* 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: Carbon Steel, High Strength Steel, Stainless Steel
Type: Round Head
Connection: Common Bolt
Customization:
Available

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about shipping cost and estimated delivery time.
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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

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

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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.

eye bolt screw

What is an eye bolt screw, and how is it used in various applications?

An eye bolt screw is a type of fastener that features a looped or circular end, commonly referred to as an “eye,” which allows for the attachment of cables, ropes, or other hardware. It is designed to provide a secure and reliable point for lifting, hanging, or securing objects in various applications. Here’s an overview of eye bolt screws and their uses in different settings:

An eye bolt screw typically consists of three main components: a threaded shank, a looped eyelet, and a shoulder or collar that provides stability and prevents the bolt from pulling through the attachment point. The threaded shank allows for easy installation by screwing the bolt into a pre-drilled hole or threaded receptacle.

Eye bolt screws find applications across multiple industries and settings, including:

  1. Lifting and Rigging: One of the primary uses of eye bolt screws is in lifting and rigging operations. They provide a secure anchor point for attaching slings, chains, or cables to lift heavy objects, such as machinery, equipment, or structural components. Eye bolt screws used in lifting applications must be rated for the intended load capacity and comply with applicable safety standards.
  2. Marine and Boating: Eye bolt screws are commonly used in marine and boating applications. 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 to withstand the harsh marine environment.
  3. Outdoor and Recreational Activities: Eye bolt screws are utilized in various outdoor and recreational activities. They can be used to create anchor points for hanging swings, hammocks, or zip lines, providing a safe and stable attachment for users. Eye bolt screws are also employed in camping, hiking, and adventure sports for setting up shelters, securing equipment, or establishing temporary structures.
  4. Construction and Building: In the construction industry, eye bolt screws are used for various purposes. They can be installed in concrete, wood, or steel structures to provide attachment points for hoisting or securing materials during construction or renovation projects. Eye bolt screws are also employed in scaffolding systems, safety harnesses, or fall protection equipment.
  5. Industrial and Manufacturing: Eye bolt screws find applications in industrial and manufacturing settings. They can be used 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.
  6. Transportation and Automotive: Eye bolt screws are utilized in the transportation and automotive industries. They can be used 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.

It is important to choose eye bolt screws that are appropriate for the intended application and meet the necessary load capacity and safety requirements. The installation of eye bolt screws should follow recommended guidelines, including proper torque values, thread engagement, and inspection for any signs of wear or damage over time. Regular maintenance and inspections are necessary to ensure the continued safety and reliability of eye bolt screw installations.

China Professional Phillips Cross DIN 7991 Countersunk Head Hex Slotted Button Price and High-Quality Machine Screw  China Professional Phillips Cross DIN 7991 Countersunk Head Hex Slotted Button Price and High-Quality Machine Screw
editor by Dream 2024-05-07