Lock Washer, Cup, Mudguard, Full Washers, Form A
Ceramic, Brass, TPE, Copper, Steel
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
21 mm, 5.3 mm, 2.25 mm, 13 mm, 6.5 mm
0.7 mm, 2.5 mm, 1.5 mm, 1.1 mm, 0.28 mm
M20, M10, M5 (Form A), M6, M16
DIN 127B, BS 4463, BS 4320, ASME B18.22.1
ASTM F844, BS 4320B