What does the combination screw do?

The combination screw actually refers to a combination of a screw with a spring washer and a flat washer, which are combined and fastened together by rubbing the teeth.

A new type of combination screw product is launched, and the special combination screw penetrates the top plate. After that, the hollow structure at the tail of the combination screw expands and penetrates without piercing the bottom plate under the action of the riveting die, and then forms a strong riveting point.

So, what is the function of the combination screw?

1. Combined screws can connect light metals, non-ferrous metals, ferrous metals and non-ferrous metals. Therefore, in the production of car bodies, the self-piercing riveting technology of combined screws creates clear favorable conditions for rapid production and assembly line operations, especially for The connection between the wagon compartment panels is of great significance.

2. In order to achieve economical efficiency, the selection of body materials is very necessary, such as the selection of light metal or non-metallic materials, because these materials cannot be welded and traditional riveting skills, because the combination screw can complete the punching riveting once, without Affects aesthetics, so it is chosen by a wide range of car manufacturers.