Internal Tooth, Lock Washer, Mudguard, Full Washers, Form A
301 Stainless Steel, Brass, TPE, Vulcanised Fibre, Stainless Steel
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
21 mm, 2.1 mm, 2.25 mm, 4.36 mm, 6.5 mm
0.7 mm, 8.1 mm, 0.16 mm, 2.2 mm, 3 mm
M24, M3, M5 (Form A), M16, M2.5
DIN 6797A, BS 4320B, BS 4320:1968, BS 4320, ASME B18.21.1