External Tooth, Mudguard, Plain Washer, Full Washers, Form A
Brass, TPE, Stainless Steel, Nylon, Copper
3/4" X 3" X 1/4", 15.5 mm, 12 mm, 6.9 mm, 11.88 mm
4.85 mm, 2.1 mm, 14 mm, 13 mm, 6.5 mm
3.5 mm, 0.7 mm, 0.4 mm, 0.8 mm, 0.3 mm
M3 (Form A), M3, M24, M5 (Form A), M2.5
DIN 7980, ASME B18.8.1, BS 4320B, DIN 125A, BS 4463