External Tooth, Internal Tooth, Mudguard, Full Washers, Form A
Stainless Steel, Brass, 301 Stainless Steel, TPE, Vulcanised Fibre
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.6 mm, 4.85 mm, 3.2 mm, 2.25 mm, 6.5 mm
1.8 mm, 2.5 mm, 1.1 mm, 1.6 mm, 0.28 mm
M5, M3 (Form A), M3, M5 (Form A), M10
BS 4320:1968, DIN 127B, DIN 7980, BS 4320B, BS 4320