External Tooth, Internal Tooth, Mudguard, Full Washers, Form A
Steel, Fibre, Brass, 301 Stainless Steel, TPE
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
25 mm, 16.2 mm, 5.36 mm, 4.36 mm, 6.5 mm
0.7 mm, 3 mm, 8.1 mm, 2.5 mm, 0.28 mm
M24, M16, M5 (Form A), M12, M2
DIN 7980, DIN 6797J, BS 4320, BS 4320B, ASME B18.8.1