Cup, Lock Washer, Plain Washer, Full Washers, Form A
Brass, Vulcanised Fibre, TPE, Nylon, Copper
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
11 mm, 2.25 mm, 17 mm, 4.36 mm, 6.5 mm
1.6 mm, 0.6 mm, 1.5 mm, 1.1 mm, 0.28 mm
M12, M6 (Form A), M3 (Form A), M16, M5 (Form A)
BS 4320:1968, BS 4320G, BS 4320, BS 4320B, DIN 7980