Internal Tooth, Mudguard, Lock Washer, Full Washers, Form A
Brass, Fibre, TPE, Ceramic, Steel
7.99 mm, 15.5 mm, 6.9 mm, 10 mm, 11.88 mm
12.5 mm, 16.2 mm, 5.36 mm, 4.36 mm, 6.5 mm
1.6 mm, 8.1 mm, 0.4 mm, 0.5 mm, 0.28 mm
M5 (Form A), M16, M12, M2.5, M3
DIN 7603, ASME B18.21.1, DIN 125A, DIN 7603A, BS 4320B