Cup, Lock Washer, Plain Washer, Full Washers, Form A
Fibre, Stainless Steel, Copper, TPE, Brass
12 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.36 mm, 4.85 mm, 2.1 mm, 11 mm, 6.5 mm
1.2 mm, 0.9 mm, 1.8 mm, 3.5 mm, 0.6 mm
M12, M5 (Form A), M2, M10, M3
DIN 6798J, DIN 7980, DIN 6797J, ASME B18.21.1, BS 4320B