The principle of self clinching studs is to press the embossing teeth into the preset holes of the sheet metal. Generally, the diameter of the square preset holes is slightly smaller than the embossing teeth of the clinching studs, and the clinching studs are squeezed by pressure. Inserting into the plate will cause plastic deformation around the hole, and the deformation will be squeezed into the guide groove, thereby producing a locking effect. The pressure riveting studs are divided into free-cutting steel pressure riveting studs S type, pressure riveting studs CLS type, stainless steel pressure riveting studs SP type and copper and aluminum pressure riveting studs CLA type. environment of use. Sizes are usually from M2 to M12. There is no unified national standard for pressure riveting studs, which are often used in chassis cabinets and sheet metal industries.


Introduction of anti-loosening methods for pressure riveting studs:
(1) Collision prevention
1. The spring gasket is anti-loose
The material of the spring washer is spring steel. After installation, the washer is flattened, and its rebound force can maintain the compression force and friction force between the threads, and then realize the anti-loosening and anti-loosening of the top nut, and use the nut to top effect to make the bolt type It is subjected to additional pulling force and additional friction force. Because one more nut is used, and the work is not very reliable, it has been u