Internal Tooth, Lock Washer, Mudguard, Full Washers, Form A
TPE, Nylon, Stainless Steel, Copper, Brass
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
12.2 mm, 2.2 mm, 2.25 mm, 4.36 mm, 6.5 mm
8.1 mm, 2.5 mm, 0.8 mm, 0.3 mm, 0.28 mm
M3, M16, M3 (Form A), M12, M5 (Form A)
BS 4320:1968, DIN 6798J, ASME B18.21.1, BS 4320, DIN 125A