Countersunk Washer, Lock Washer, Cup, Full Washers, Form A
Vulcanised Fibre, TPE, Copper, Stainless Steel, Brass
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
16.2 mm, 5.36 mm, 2.25 mm, 13 mm, 6.5 mm
0.8 mm, 1.8 mm, 8.1 mm, 0.5 mm, 2.5 mm
M3.5, M3 (Form A), M20, M12, M5 (Form A)
BS 4320:1968, BS 4320, DIN 7980, BS 4320B, ASME B18.21.1