Evaluation of the importance of fasteners for automobiles

Fasteners for automobiles include various standard and non-standard fastening elements of the whole vehicle, which are fastened and connected by various loose parts. Bolts, screws, etc. are fastened and connected by threads. Calculated by the number of parts, the proportion of fasteners in the total number of parts of the whole vehicle is much higher than that of any other parts, reaching 40% to 55%; the assembly process of the whole vehicle and the assembly is mainly to use fasteners to connect various parts. The process of some fastener failures resulting in car crashes are also heard. Therefore, fasteners should be important to the manufacture and use of automobiles, but in fact, automobile fasteners have not received widespread and sufficient attention in China, which is a problem worthy of discussion