Mudguard, Crinkle, Plain Washer, Full Washers, Form A
Brass, Fibre, Stainless Steel, Steel, TPE
50 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 5.3 mm, 5.36 mm, 2.25 mm, 6.5 mm
0.6 mm, 0.4 mm, 1.1 mm, 2.5 mm, 0.28 mm
M12, M3, M5 (Form A), M6, M10
BS 4320, ASME B18.8.1, ASME B18.22.1
ASTM F844, DIN 7980, ASME B18.21.1