Cup, Nylon Washers, Mudguard, Full Washers, Form A
Ceramic, 301 Stainless Steel, Nylon, Copper, Brass
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
5.3 mm, 5.36 mm, 2.25 mm, 6 mm, 6.5 mm
1.4 mm, 5.8 mm, 0.8 mm, 3.5 mm, 8.1 mm
M3, M12, M5 (Form A), M2, M10
BS 4320B, BS 4320:1968, DIN 6798J, ASME B18.22.1
ASTM F844, ASME B18.8.1