Spring, Cup, Crinkle, Full Washers, Form A
TPE, Steel, Nylon, Copper, Brass
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 2.2 mm, 6.4 mm, 2.25 mm, 6.5 mm
1.8 mm, 3.5 mm, 1.1 mm, 0.5 mm, 1.6 mm
M8, M3 (Form A), M24, M5 (Form A), M2
BS 4320G, BS 4320, ASTM F436, DIN 125A, ASME B18.21.1