Countersunk Washer, Cup, Internal Tooth, Full Washers, Form A
Neoprene, Fibre, Brass, TPE, Steel
8.8 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
6.4 mm, 5.3 mm, 13 mm, 4.36 mm, 6.5 mm
1.6 mm, 0.6 mm, 0.5 mm, 0.3 mm, 0.28 mm
M16, M24, M5 (Form A), M20, M4
DIN 7603A, BS 4320G, ASME B18.22.1
ASTM F844, BS 4320B, ASME B18.21.1