Cup, Lock Washer, Plain Washer, Full Washers, Form A
Ceramic, Vulcanised Fibre, Steel, Nylon, Brass
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 16.2 mm, 2.25 mm, 13 mm, 6.5 mm
1.4 mm, 5.8 mm, 2.2 mm, 0.28 mm, 1.1 mm
M3, M3 (Form A), M5 (Form A), M2, M6
DIN 127B, DIN 125A, DIN 7603A, DIN 6797J, BS 4320B