Internal Tooth, Mudguard, Cup, Full Washers, Form A
301 Stainless Steel, Copper, TPE, Nylon, Brass
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 6.4 mm, 5.3 mm, 16.2 mm, 6.5 mm
0.4 mm, 8.1 mm, 1.1 mm, 3.5 mm, 0.28 mm
M8, M16, M5, M3 (Form A), M5 (Form A)
BS 4320:1968, BS 4320, DIN 6797J, BS 4320G, BS 4320B