External Tooth, Crinkle, Cup, Full Washers, Form A
A2/304 Stainless Steel, Fibre, Brass, Steel, TPE
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
5.3 mm, 4.85 mm, 2.1 mm, 21 mm, 6.5 mm
0.7 mm, 1.4 mm, 5.8 mm, 1.8 mm, 0.4 mm
M16, M3 (Form A), M24, M5 (Form A), M20
BS 4320:1968, ASME B18.8.1, DIN 7603A, BS 4320B, BS 4463