Internal Tooth, External Tooth, Mudguard, Full Washers, Form A
TPE, Stainless Steel, Vulcanised Fibre, Copper, Steel
7.99 mm, 15.5 mm, 12 mm, 6.9 mm, 11.88 mm
2.1 mm, 21 mm, 12.2 mm, 2.25 mm, 6.5 mm
1.8 mm, 3.5 mm, 0.6 mm, 8.1 mm, 0.28 mm
M2, M10, M24, M3, M5 (Form A)
ASME B18.21.1, BS 4320, ASME B18.8.1, BS 4320G, BS 4320B