Lock Washer, Nylon Washers, Mudguard, Full Washers, Form A
Steel, Brass, Vulcanised Fibre, TPE, Nylon
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 5.36 mm, 2.25 mm, 13 mm, 6.5 mm
1.4 mm, 5.8 mm, 1.2 mm, 8.1 mm, 0.28 mm
M3 (Form A), M12, M3, M24, M5 (Form A)
BS 4320G, BS 4320, ASME B18.21.1, ASTM F436, BS 4320B