Cup, Nylon Washers, Mudguard, Full Washers, Form A
Brass, Fibre, Copper, Stainless Steel, TPE
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 5.3 mm, 3.2 mm, 16.2 mm, 6.5 mm
1 mm, 0.6 mm, 0.28 mm, 1.1 mm, 3.5 mm
M16, M3 (Form A), M12, M5 (Form A), M2
BS 4320B, DIN 125A, DIN 6797J, ASME B18.21.1, DIN 7603A