The characteristics of automotive screws are mainly reflected in the following aspects:
Different parts of a car require screws to withstand varying forces, leading to different strength grades. High-strength screws are usually used in critical areas such as engines and chassis to ensure stability and reliability. Lower-strength screws are used in non-load-bearing parts to reduce costs and weight.
The tightening torque of screws is a crucial factor affecting their performance and safety. Manufacturers set appropriate tightening torque ranges for screws in different parts based on design and testing results. Over-tightening can cause screw breakage or component damage, while under-tightening may lead to screw loosening, affecting the vehicle's stability and safety. Therefore, during maintenance and repairs, screws must be tightened according to the manufacturer's instructions.
Automotive screws must endure long-term vibration and stress, requiring good fatigue resistance and durability. Materials with high fatigue resistance can extend the service life of screws, reducing damage caused by long-term vibration and stress. This is crucial for ensuring the safety and reliability of the vehicle.
In summary, the characteristics of automotive screws include material diversity, precision in size and specification, strength grade variations, tightening torque requirements, and fatigue resistance and durability. These characteristics collectively ensure the stability and safety of automotive screws in vehicles.
Material options | Stainless Steel: SUS201; SS303, SS304, SS316, SS410, SS430...; Carbon Steel: C1018, C1022, 10B21,; Alloy Steel:40Cr,SCM435... Brass; Aluminum; Copper; Customized as your requirements. |
Head Style optional | Pan, Truss, Flat, Hexagonal, Round, HEX, Cheese, Binding,Oval |
Drive Style optional | Phillips,Torx,Inner Hexagonal,Hexagonal,plum ,Cross,Slotted,Star |
Thread Type optional | Self-tapping,Machine teeth(Coarse teeth,Fine teeth),Custom thread |
Standard optional | DIN/ISO/ANSI/DIN/BSW/JIS/GOST/GB |
Finish optional | Plated:Zinc,Zinc nickel alloy , Chrome, Silver,Gold,Brass,Tin Coating:Dacromet,MAGni,Geomet,Electrophoresis,Baking paint Passivation; Oxide:Black Oxide,Anodic oxidation |
Fastener performance optional | Carbon Steel: 4.8~12.9 grade; Stainless Steel: A2-70, A4-70, A4-80, A5-80; Hardening of carburized surfaces:HV400-HV550 As you requirement. |
Anticorrosion requirement | Customizable salt spray testing time: 12H, 24H, 48H, 96H, 196H, 240H, 480H, 720H, 840H |
Size customization range | M0.6mm,MO.8mm ~ M36mm |
Length customization range | 1mm~600mm |
Environmental Data | Rohs,SCHV,MSDS,IMDS |
Quality test | Performance test report Salt spray test report Dimensional inspection report PPAP,PSW |
Screw Type | Tapping screws, Machine screws, Wood screws, Drywall screws, Cross recessed screws, Concrete screws, Torx screws, Hex cap screws, Hex socket head screws, Set screws, Shoulder screws, Thumb screws, Binding screws, Flange screws, Screw bolts, Standoff screws, Mini screws, and all custom products, and others. |
Transportation | Fedex, DHL, UPS ,or as customer's requirements. |
Packaging | Independent carton, Self-sealing bag, Blister,Vacuum packaging, Pallet,etc. |
Sample Available | Free samples, and accept small batch trial production order |
Lead Time | Samples: 5-7 days; Mass production: 15-25 days; Negotiable. |
MOQ | Products in stock:Min. order: 500pcs; Custom size and materials: Min. order: 5000pcs; Negotiable. |
We have ISO9001, IATF16949, ISO14001, ISO45001 and other system certifications.
Lead time | ||||
Quantity (pieces) | 1 - 10000 | 10001 - 50000 | 50001 - 100000 | > 100000 |
Lead time (days) | 10 | 15 | 20 | To be negotiated |
We have provided customized services to over 300 customers. Our products are sold to over 20 countries and regions including Europe, North America, South America, and Southeast Asia.