Cup, Mudguard, Plain Washer, Full Washers, Form A
Copper, Stainless Steel, TPE, Steel, Brass
12 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.6 mm, 4.85 mm, 17 mm, 2.1 mm, 6.5 mm
0.28 mm, 0.4 mm, 0.5 mm, 1.1 mm, 2.5 mm
M3 (Form A), M24, M6, M5 (Form A), M4
DIN 7980, DIN 127B, DIN 7603, BS 4320G, ASME B18.21.1