External Tooth, Internal Tooth, Crinkle, Full Washers, Form A
Steel, Brass, Fibre, TPE, Stainless Steel
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
5.36 mm, 2.25 mm, 17 mm, 4.36 mm, 6.5 mm
1.2 mm, 0.28 mm, 0.5 mm, 1.1 mm, 2.2 mm
M24, M3, M5 (Form A), M5, M2
ASME B18.22.1 ASTM
F844, BS 4320B, DIN 7980, BS 4320:1968, DIN 6797J