External Tooth, Spring, Crinkle, Full Washers, Form A
301 Stainless Steel, Fibre, Brass, Copper, TPE
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
5.3 mm, 2.25 mm, 13 mm, 4.36 mm, 6.5 mm
1.8 mm, 0.28 mm, 1.6 mm, 1.1 mm, 1 mm
M10, M6, M5, M5 (Form A), M2.5
BS 4320B, BS 4320:1968, DIN 127B, DIN 7603A, ASME B18.21.1