Countersunk Washer, Plain Washer, Cup, Full Washers, Form A
Ceramic, Steel, TPE, Nylon, Brass
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
6.4 mm, 5.36 mm, 2.25 mm, 4.36 mm, 6.5 mm
5.8 mm, 2 mm, 1.2 mm, 3.5 mm, 8.1 mm
M3 (Form A), M24, M12, M5 (Form A), M2
BS 4320B, BS 4463, DIN 7980, DIN 125A, ASME B18.21.1