Bolts For HOWO factory

The HOWO hub bolt is a high-strength bolt connecting the wheels of the vehicle. The structure of the tire screw is very simple, which is composed of screws, nuts and washers. According to the different screw structure, it can also be divided into single head bolt and double head bolt. Automobile trailer hub bolts are generally made of high-strength steel. The strength grade of the screw is printed on the head of the tire screw, including 8.8, 10.9 and 12.9. The higher the value, the higher the strength.

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