Spring, Tap Washer, Nylon Washers, Full Washers, Form A
Fibre, Copper, TPE, Stainless Steel, Steel
4 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 5.3 mm, 12.2 mm, 4.36 mm, 6.5 mm
0.16 mm, 0.28 mm, 0.4 mm, 1.1 mm, 1 mm
M10, M5 (Form A), M2, M4, M2.5
ASME B18.21.1, BS 4320B, BS 4320:1968, BS 4320, DIN 6797J