Gasket size and type

The washer is a part used to protect the surface of the connected part from being scratched by the nut, disperse the pressure of the nut on the connected part, and place it between the connected part and the nut. It is generally a flat metal ring that disperses the pressure of the nut on the connected parts. Washers are divided into: flat washer-C, large washer-A and C, extra large washer-C, small washer-A, flat washer-A, flat washer-chamfer-A, steel structure high Strength washer, spherical washer, cone washer, square bevel washer for I-beam, square bevel washer for channel steel, standard spring washer, light spring washer, heavy spring washer, internal tooth lock washer, internal serrated lock washer, External tooth lock washer, external tooth lock washer, single ear stop washer, double ear stop washer, outer tongue stop washer, stop washer for round nut.