Internal Tooth, External Tooth, Lock Washer, Full Washers, Form A
Ceramic, Vulcanised Fibre, TPE, Nylon, Steel
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, 2.1 mm, 2.2 mm, 6.5 mm
0.4 mm, 0.28 mm, 0.6 mm, 2 mm, 1.1 mm
M12, M24, M5 (Form A), M16, M2.5
DIN 6797A, BS 4320B, DIN 127B, BS 4463, ASME B18.8.1