square washers

Flat washers are basically used in most bolt or screw connections. A flat washer is a part between the connected part and the nut. Generally a flat metal ring, it can improve the force condition of the connected parts, protect the surface state of the connected parts, that is, increase the contact area, reduce friction and pressure, thereby protecting screws and nuts.

Flat washers are mostly round, but there are other shapes according to assembly needs. Specifically, there are flat washers - C grade, large washers - A and C grades, extra large washers - C grade, small washers - A grade, flat washers - A grade, flat washers - chamfered type - A grade, steel structure with high-strength gaskets, square washers, etc.