DIN 125 flat washer

　　Function of flat washer
1. It is used to cover large holes on the surface of wooden parts to prevent multiple damage.
Flat washers are generally used in connectors. One is soft and the other is hard and brittle. Its main function is to increase the contact area and disperse the pressure to prevent crushing the soft ones.
2. Between the part and the connecting part. Generally, the flat metal ring is used to protect the surface of the connected part from the scratch of the nut and disperse the pressure of the nut on the connected part.
3. The flat pad increases the contact area and prevents the friction between the bolt and the workpiece;
4. The main function of the flat washer is to protect the surface of the connector and prevent the surface of the workpiece from being scratched when the bolt and nut are tightened