Spring, Mudguard, Flat Washers, Full Washers, Form A
Steel, TPE, Stainless Steel, Nylon, Brass
7.99 mm, 15.5 mm, 12 mm, 6.9 mm, 11.88 mm
4.85 mm, 17 mm, 2.1 mm, 21 mm, 6.5 mm
0.7 mm, 1.8 mm, 2 mm, 1.6 mm, 0.28 mm
M3 (Form A), M8, M24, M3, M5 (Form A)
DIN 6797A, DIN 7603A, BS 4320B, BS 4320, ASME B18.22.1 ASTM
F844