High Strength Bolts Automotive

High strength bolts automotive are critical fasteners in vehicle structures. They are widely used in engines, transmissions, chassis, and body assemblies. Our product are made from high-quality alloy steel. They are manufactured through precision cold heading and thread rolling processes. Strict heat treatment control ensures the mechanical properties of our product meet Grade 10.9 and Grade 12.9 standards. These product fit all types of passenger cars and commercial vehicles.

Every batch of our high strength bolts automotive goes through hardness testing, tensile testing, and torque-clamp force testing. This ensures every bolt provides stable and reliable clamping force during assembly. Since our IATF 16949 certification in 2023, we have implemented full quality traceability for our product. Complete records are kept from raw material chemical analysis to final performance testing. We supply these product to Anhui Zhongding and ASIMCO. Annual capacity exceeds 2,000,000 pieces.

High strength bolts automotive differ from standard bolts in several ways. They use specially designed alloy materials and strict heat treatment processes. Their tensile strength and fatigue resistance are much better than standard bolts. They can handle the alternating loads and vibration in driving. We perform transverse vibration anti-loosening tests on every batch of product. The clamp force decay is kept within your specified range under vibration conditions. Need custom bolts? We can adjust material, grade, coating, or size. First articles are ready in 10 to 15 days. Shipping is FOB Ningbo or Shanghai. Delivery takes 15 to 25 days after order confirmation.

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