Cup, Lock Washer, Full Washers, Flat Washers, Form A
A2/304 Stainless Steel, Fibre, Steel, TPE, Brass
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
12.2 mm, 5.36 mm, 2.25 mm, 4.36 mm, 6.5 mm
5.8 mm, 1.2 mm, 0.6 mm, 0.3 mm, 0.28 mm
M3 (Form A), M3, M5 (Form A), M16, M4
BS 4320G, BS 4320, ASME B18.22.1
ASTM F844, DIN 7980, BS 4320B