Lock Washer, Crinkle, Plain Washer, Full Washers, Form A
Brass, Fibre, Stainless Steel, Steel, TPE
4 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 5.36 mm, 2.25 mm, 13 mm, 6.5 mm
0.16 mm, 3.5 mm, 0.28 mm, 8.1 mm, 1.2 mm
M3, M10, M20, M3 (Form A), M5 (Form A)
BS 4320, ASTM F436, ASME B18.8.1, ASME B18.22.1
ASTM F844, BS 4320B