Crinkle, Tap Washer, Cup, Full Washers, Form A
TPE, Brass, Ceramic, Steel, Stainless Steel
8.8 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
17 mm, 5.3 mm, 2.25 mm, 21 mm, 6.5 mm
0.3 mm, 1.2 mm, 0.28 mm, 8.1 mm, 0.16 mm
M24, M12, M5 (Form A), M4, M10
DIN 6797J, BS 4320, ASME B18.8.1, BS 4320G, BS 4320B