Cup, Nylon Washers, Mudguard, Full Washers, Form A
Fibre, TPE, 301 Stainless Steel, Steel, Brass
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
14 mm, 5.36 mm, 21 mm, 4.36 mm, 6.5 mm
0.6 mm, 8.1 mm, 2 mm, 3.5 mm, 2.5 mm
M3 (Form A), M24, M16, M5 (Form A), M4
BS 4320:1968, ASME B18.8.1, BS 4320G, BS 4320, ASME B18.21.1