Plain Washer, Mudguard, Cup, Full Washers, Form A
Fibre, TPE, Brass, Stainless Steel, Steel
12.5 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
11 mm, 3.2 mm, 12.2 mm, 16.2 mm, 6.5 mm
1.4 mm, 5.8 mm, 3.5 mm, 8.1 mm, 1.2 mm
M3 (Form A), M3, M16, M5 (Form A), M2.5
BS 4320:1968, DIN 127B, DIN 125A, BS 4320G, BS 4320B