Mudguard, Cup, Crinkle, Full Washers, Form A
Brass, 301 Stainless Steel, TPE, Steel, Stainless Steel
37 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, 13 mm, 6.5 mm
1.4 mm, 5.8 mm, 0.28 mm, 2.5 mm, 1.1 mm
M3 (Form A), M3, M5 (Form A), M2, M6
DIN 6797J, BS 4320G, DIN 7603A, ASME B18.8.1, BS 4320B