Lock Washer, Mudguard, Crinkle, Full Washers, Form A
Fibre, Stainless Steel, Steel, Brass, TPE
30 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.6 mm, 4.85 mm, 2.1 mm, 12.2 mm, 6.5 mm
1 mm, 0.6 mm, 8.1 mm, 1.5 mm, 0.28 mm
M3, M5, M16, M5 (Form A), M6
DIN 127B, DIN 7980, DIN 125A, BS 4320G, BS 4320B