Cup, External Tooth, Mudguard, Full Washers, Form A
301 Stainless Steel, Brass, TPE, Ceramic, Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
8.4 mm, 13 mm, 2.2 mm, 5.36 mm, 6.5 mm
2 mm, 1.1 mm, 0.8 mm, 2.5 mm, 0.28 mm
M2.5, M3 (Form A), M16, M5 (Form A), M20
BS 4320B, BS 4320:1968, DIN 127B, ASME B18.8.1, BS 4463