Hardware Products
Your Professional Hardware Products Supplier
The company was established in August 2019, located in the Nanshan Park of the National Ningguo Economic and Technological Development Zone, covering an area of over 10 acres with factory buildings. The company currently has over 60 employees, including 6 technical personnel, 8 quality management personnel, over 40 frontline workshop operators, and 8 other management personnel.Equipped with CNC machining centers, automatic laser cutting systems, optical inspection devices, and other precision manufacturing equipment, we focus on producing high-accuracy mechanical components such as bushings, brackets, and structural parts.
Why choose us
Quality Control and Testing
All products undergo 100% or sampling inspection before leaving the factory to ensure they meet customer specifications, and provide complete inspection reports (such as dimensional reports, material certificates, etc.).
Professional design
With extensive manufacturing experience, we provide Design for Manufacturability (DfM) guidance to help customers optimize product structure, enhance performance, and reduce overall cost.
Certified Quality System
Our production is managed under ISO 9001 and strictly aligned with the IATF16949 quality requirements, ensuring every process meets international automotive standards.
Service Advantages
With a 24-hour response mechanism, 48-hour on-site support when needed, and structured 8D problem solving, we ensure rapid resolution and continuous improvement.
Automotive High-Strength Fasteners
Automotive High-Strength Fasteners connect, clamp and keep parts of a vehicle together. Whether it's an engine component or body paneling, fasteners play a critical role in ensuring stability and structure. Their primary function is to provide a secure bond between different parts, making sure they stay in place while the vehicle is operating. This ensures that cars run smoothly, safely, and efficiently.
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Product Name: |
High-Strength Automotive Fasteners: Durable Bolts and Screws for Vehicle Assembly |
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Material: |
Steel, Stainless steel, Aluminum, Brass, Carbon Steel, etc. |
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Size: |
OEM Customized |
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Pressing Capacity: |
6.3-600Tons |
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Processing: |
Stamping, Punching, Bending, Tapping, Milling, Lathe/Welding, Assembly, Laser cutting |
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Surface Treatment: |
Plating, Galvanization, Anodized, and Powder coating. |
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Package: |
Carton, Wooden Case or as Required |
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Country of origin: |
China |
Increased Strength: High-tensile fasteners are designed to withstand higher levels of tension and shear forces, making them ideal for applications where standard fasteners may fail.
Reduced Weight: Because they can handle greater loads, you can often use smaller and lighter fasteners, which can reduce overall weight in structures and machinery.
Improved Safety: These fasteners are less likely to break or fail under stress, which enhances the safety of equipment, structures, and machinery.
Longer Service Life: Due to their durability and strength, high-tensile fasteners often have a longer service life, reducing maintenance and replacement frequency.
Precise Tightening
High-tensile fasteners can be torqued to specific values more accurately, ensuring a secure and reliable connection.
Enhanced Performance
In applications where precision and reliability are crucial, high-tensile fasteners contribute to improved overall performance.
High-Temperature Resistance
Some high-tensile fasteners are designed to withstand elevated temperatures without compromising their strength or integrity.
Types of Automotive High-Strength Fasteners
Nuts
These are typically hexagonal in shape and have an internal thread. They are designed to be used with bolts.
Bolts
These are externally threaded fasteners. Once inserted through a pre-drilled hole, they can be fastened with a nut on the other end or screwed into a threaded hole, creating a solid connection.
Washers
Washers are flat, usually circular discs with a hole in the center. They are placed between the head of a bolt or screw and the surface of the components being fastened to prevent damage and loosening.
Screws
These are similar to bolts but have a pointed end and are often used in places where quick assembly and disassembly are required. The threads allow you to screw directly into materials such as plastic or metal without the need for a nut.
Clips
Clips are automotive fasteners that are designed to snap into place. They're commonly used for holding panels, linings or wires and are typically used in areas where it's beneficial to avoid visible components, like interior trims.
Rivets
These permanent fasteners consist of a smooth shaft with a head on one end. Once inserted through a hole, the other end is deformed to keep it in place, forming a second head and an incredibly strong bond. Use these on parts that will likely never need to be separated.
Engine Components
The main components of a car engine are the cylinder block, cylinder head, crankshaft, combustion chamber, and valves. They all work together to convert chemical energy to mechanical energy used to propel the car forward.
Suspension and Steering Systems
The various parts of the suspension and steering system move the wheels in the right direction. In addition, the springs in the suspension absorb shock to ensure the passenger’s safety.
Body and Interior Trim
Automotive fasteners keep the body, interior trim, and car going. Auto part manufacturers use a wide selection of springs, nuts, clips, screws, and bolts on a car body.
Electrical Systems
Fasteners play a major role in battery design for electric vehicles, such as producing components of electric vehicle batteries. Screws, nuts, and washers provide premium protection to batteries.
Wheels
Automotive fasteners firmly hold the wheels onto the car. They are very important, and using the wrong fastener poses a safety risk. The lug nuts, wheel studs, and wheel bolts all attach the wheel to the axle, keeping the car stable when in motion.
The role in security of Automotive High-Strength Fasteners
Structural Integrity
Automotive industrial safety depends largely on the structural strength of the vehicle. Fasteners maintain the framework of the car, ensuring that key assemblies such as the chassis, suspension, and body panels remain intact under stress. Proper torque and tension prevent loosening, which could otherwise lead to part failure during operation.
Crashworthiness
During a collision, fasteners influence how energy is absorbed and distributed throughout the vehicle body. High-strength bolts in crash zones are engineered to withstand impact and keep key structures intact long enough for safety systems like airbags and seat belts to function properly.
Brake and Steering Systems
Brake assemblies and steering columns rely on highly durable fasteners. A single failure in these critical areas can lead to catastrophic accidents. For this reason, special alloys and coatings are often used for fasteners in brake calipers, rotors, and steering linkages to prevent wear, loosening, and corrosion.
Prevention of Vibrations and Fatigue
Vehicles experience constant vibrations from engines, road surfaces, and aerodynamics. Poorly secured fasteners may loosen over time, leading to component fatigue or separation. Advanced locking mechanisms and vibration-resistant fasteners’ designs are crucial for preventing safety hazards.
Role in performance of Automotive High-Strength Fasteners
Aerodynamics
Exterior body panels and underbody shields are secured with flush-mounted fasteners that reduce drag and improve aerodynamics. Even minor improvements in aerodynamics contribute to better fuel efficiency and overall performance.
Heat and Corrosion Resistance
Engines and exhaust systems operate at high temperatures. Fasteners in these areas must withstand both heat and corrosion. Stainless steel, titanium, and coated fasteners are commonly used to enhance longevity and maintain consistent performance in harsh environments.
Serviceability and Maintenance
Performance is not just about speed and efficiency; it also includes the ability to maintain and repair vehicles. Fasteners are designed for repeat assembly and disassembly, enabling technicians to replace worn parts without damaging the overall structure.
Applications of Car Fasteners
The application of the automotive part will play a huge role in selecting the right material. For example, fasteners applicable in a harsh environment will most likely be made using a metal due to their mechanical properties.
Threading
Fasteners can either have coarse or fine threading. On the one hand, using coarse threaded fasteners will ensure faster assembly. On the other hand, finely threaded fasteners are slower to assemble due to the travel distance but provide a more secure connection.
Material of Construction
There are several types of materials suitable for constructing a fastener. The right material should have properties that make it suitable for its purpose. For example, they should be corrosion-resistant and strong enough to hold the parts together firmly. Auto manufacturers can explore the advantages of metals and plastics for such requirements.
Exposure of the Fasteners
Exposure of the car fastener can be to heat or vibration. Almost all parts of a moving vehicle radiate heat. As a result, the right automotive fasteners should withstand the temperature at the point of use.
Manufacturing Process
Material Selection
Common materials include medium-carbon alloy steel (such as SCM435, 35CrMo), high-strength steel (such as 10B33), stainless steel (such as 304, 316), and lightweight materials (such as aluminum alloys, magnesium alloys).
Heat Treatment Process
Quenching + High-Temperature Tempering: Improves overall mechanical properties and transforms the microstructure into tempered sorbite. For example, 10.9 grade bolts require quenching to a martensitic structure, followed by tempering to a hardness of 33-39 HRC.
Hydrogen Embrittlement Relief Treatment: For high-strength bolts above 1000 MPa, after electroplating, they need to be heated to 200-230°C and held for 2-4 hours to eliminate the risk of hydrogen embrittlement.
Forming Process
Cold Heading: The bolt head is formed in one step using a multi-station cold heading machine, increasing efficiency by more than 30% compared to machining.
Rivet Technology: Replaces traditional welding, enabling the connection of dissimilar materials (such as aluminum-steel), reducing stress concentration.
Surface Treatment
Zinc-Aluminum Coating: Provides salt spray resistance for over 1000 hours, suitable for chassis components.
Zinc-Nickel Alloy Coating: Provides a stable friction coefficient (0.10-0.16), suitable for areas requiring precise pre-tightening force (such as engine cylinder head bolts).
Certificates
