Internal Tooth, External Tooth, Crinkle, Full Washers, Form A
Fibre, TPE, 301 Stainless Steel, Copper, Steel
3/4" X 3" X 1/4", 24 mm, 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 6 mm, 2.1 mm, 21 mm, 6.5 mm
0.5 mm, 1 mm, 1.6 mm, 0.3 mm, 2.2 mm
M3 (Form A), M24, M16, M5 (Form A), M20
DIN 6797A, BS 4463, BS 4320G, BS 4320B, DIN 7603A