Internal Tooth, Cup, Mudguard, Full Washers, Form A
Ceramic, 301 Stainless Steel, Nylon, Copper, Steel
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
13 mm, 16.2 mm, 4.36 mm, 5 mm, 6.5 mm
8.1 mm, 0.5 mm, 1.5 mm, 2.5 mm, 0.28 mm
M2.5, M3 (Form A), M20, M24, M5 (Form A)
BS 4320B, DIN 127B, BS 4320:1968, ASME B18.21.1, DIN 7603A