Washer classification

Washers are divided into: flat washers - class C, large washers - A and C grades, extra large washers - C grade, small washers - grade A, flat washers - grade A, flat washers - chamfered type - A grade, high steel structure Strength washers, spherical washers, tapered washers, square slant washers for I-steel, 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 lock washer, external serrated lock washer, single ear stop washer, binaural stop washer, outer tongue stop washer, and retaining washer for round nut.