Mudguard, Plain Washer, Cup, Full Washers, Form A
Brass, Fibre, TPE, Nylon, Stainless Steel
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
10.5 mm, 12.5 mm, 5.3 mm, 16.2 mm, 6.5 mm
8.1 mm, 1.6 mm, 1.1 mm, 3.5 mm, 0.3 mm
M16, M3 (Form A), M5, M5 (Form A), M4
DIN 7603, BS 4463, DIN 7980, DIN 125A, ASME B18.21.1