External Tooth, Plain Washer, Full Washers, Form A, Flat Washers
Stainless Steel, Brass, TPE, Nylon, Copper
4.5 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.2 mm, 16.2 mm, 2.25 mm, 4.36 mm, 6.5 mm
5 mm, 0.16 mm, 1.8 mm, 1.6 mm, 0.3 mm
M3 (Form A), M10, M24, M5 (Form A), M8
DIN 127B, BS 4320:1968, DIN 7980, ASME B18.8.1, BS 4320B