Plain Washer, Mudguard, Spring, Full Washers, Form A
301 Stainless Steel, Steel, Brass, Nylon, Copper
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
5.36 mm, 2.25 mm, 21 mm, 4.36 mm, 6.5 mm
0.3 mm, 1.2 mm, 0.4 mm, 0.28 mm, 8.1 mm
M24, M3, M5 (Form A), M5, M12
DIN 125A, ASME B18.22.1
ASTM F844, BS 4320G, DIN 7603A, BS 4320B