Mudguard, Cup, Crinkle, Full Washers, Form A
TPE, Brass, Ceramic, Stainless Steel, Nylon
30 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
6.4 mm, 12.2 mm, 10.5 mm, 13 mm, 6.5 mm
8.1 mm, 1.6 mm, 2 mm, 0.16 mm, 0.28 mm
M2.5, M3 (Form A), M20, M12, M5 (Form A)
DIN 125A, ASME B18.22.1 ASTM
F844, ASME B18.22.1
ASTM F844, DIN 7603A, ASME B18.21.1