What is a gasket?

Washer definition:

A gasket is a thin metal pad placed between a nut or a screw head and a connected piece. It is a commonly used type of small hardware.

Common types of washers are:

Flat washers - Class C, large washers - Class A and Class C, Extra Large Washers - Class C, Small Washers - Class A, Flat Washers - Class A, Flat Washers - Chamfer Type - Class A, High Strength Washers for Steel Structures, Spherical Washers, tapered washers, square slant washers for I-beam, square slant washers for channel steel, standard spring washers, light spring washers, heavy duty spring washers, internal tooth lock washers, internal serrated lock washers, external tooth locks Washers, external serrated lock washers, single ear stop washers, binaural stop washers, outer tongue stop washers, and retaining washers for round nuts.

Flat washers differ from spring washers:

Flat washers are generally used in the joints. One is soft and the other is hard and brittle. Its main function is to increase the contact area, disperse the pressure, and prevent the soft texture from being crushed. The basic function of the spring washer spring is to force the nut after the nut is tightened, and increase the friction between the nut and the bolt! The material is 65Mn (spring steel), heat treatment hardness is HRC44 ~ 51HRC, and is surface oxidized.