Crinkle, Plain Washer, Mudguard, Full Washers, Form A
Brass, Fibre, Stainless Steel, Copper, TPE
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
12.2 mm, 25 mm, 5.36 mm, 21 mm, 6.5 mm
3.5 mm, 0.6 mm, 2.5 mm, 0.5 mm, 0.28 mm
M6, M3 (Form A), M16, M5 (Form A), M2
ASME B18.21.1, ASME B18.8.1, ASME B18.22.1
ASTM F844, BS 4320B, DIN 7603A