Lock Washer, Internal Tooth, Plain Washer, Full Washers, Form A
Fibre, Steel, Stainless Steel, TPE, Copper
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 11 mm, 5.3 mm, 2.25 mm, 6.5 mm
0.7 mm, 0.28 mm, 0.6 mm, 2.5 mm, 0.3 mm
M5, M3 (Form A), M16, M2, M5 (Form A)
DIN 7980, BS 4320:1968, BS 4320, ASME B18.21.1, BS 4320B