External Tooth, Crinkle, Internal Tooth, Full Washers, Form A
TPE, Copper, Nylon, Brass, Stainless Steel
12 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.2 mm, 6.4 mm, 5.36 mm, 13 mm, 6.5 mm
0.9 mm, 0.16 mm, 1.1 mm, 1.5 mm, 1.6 mm
M6 (Form A), M3 (Form A), M5 (Form A), M3, M10
ASME B18.22.1 ASTM
F844, BS 4320G, BS 4320, DIN 6797J, BS 4320B