Mudguard, Cup, Internal Tooth, Full Washers, Form A
Brass, Fibre, Stainless Steel, Copper, TPE
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.2 mm, 6.4 mm, 2.25 mm, 4.36 mm, 6.5 mm
1.8 mm, 3.5 mm, 0.28 mm, 2 mm, 0.3 mm
M3 (Form A), M5, M12, M5 (Form A), M10
DIN 6798J, BS 4320, ASME B18.21.1, DIN 7603A, BS 4320B