Internal Tooth, Mudguard, Cup, Full Washers, Form A
Ceramic, Nylon, Brass, Stainless Steel, Copper
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
2.25 mm, 21 mm, 13 mm, 4.36 mm, 6.5 mm
2.5 mm, 1.1 mm, 1 mm, 0.3 mm, 2.2 mm
M3 (Form A), M24, M12, M5 (Form A), M16
BS 4320, DIN 6797J, DIN 7980, ASME B18.21.1, BS 4320B