External Tooth, Cup, Crinkle, Full Washers, Form A
Steel, TPE, Copper, Stainless Steel, Nylon
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
10.5 mm, 6 mm, 2.1 mm, 3.2 mm, 6.5 mm
3.5 mm, 8.1 mm, 0.3 mm, 1 mm, 1.6 mm
M3 (Form A), M20, M24, M5 (Form A), M16
BS 4320, DIN 6797A, DIN 7603A, DIN 7980, BS 4320B