Spring, Mudguard, Cup, Full Washers, Form A
301 Stainless Steel, Steel, Copper, TPE, Ceramic
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
13 mm, 12.5 mm, 2.25 mm, 17 mm, 6.5 mm
8.1 mm, 1.6 mm, 2.5 mm, 0.8 mm, 2.2 mm
M10, M16, M5 (Form A), M6, M2
ASME B18.21.1, BS 4320B, ASME B18.22.1
ASTM F844, DIN 7603A, BS 4463