Car gasket is a component used to connect structures, usually a flat metal ring, placed between the connected part and the nut. It can effectively protect the surface of the connected structure from scratches from the nut, while dispersing the burden of the nut on the connected structure. There are various types of washers, each with different sizes, thicknesses, and materials, so their functions also vary.

Fixed seats, seat belts, and other interior components: Automotive fasteners are also used to secure seats, seat belts, and other interior components. These components are crucial for providing a comfortable and safe riding environment. In the process of automobile manufacturing, fasteners are widely used to connect various components of the vehicle body, such as doors, carriages, hood, etc. They ensure that these components are firmly connected together, thereby ensuring the stability and smooth driving of the entire vehicle.