External Tooth, Crinkle, Cup, Full Washers, Form A
301 Stainless Steel, TPE, Ceramic, Stainless Steel, Copper
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
10.5 mm, 12.5 mm, 5.36 mm, 2.25 mm, 6.5 mm
1.8 mm, 0.28 mm, 8.1 mm, 1.2 mm, 0.3 mm
M2, M8, M24, M5 (Form A), M3
BS 4320B, BS 4320:1968, BS 4320G, BS 4320, DIN 125A