Spring, Cup, Crinkle, Full Washers, Form A
TPE, Steel, Copper, Brass, Stainless Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
17 mm, 5.1 mm, 2.6 mm, 4.85 mm, 6.5 mm
2.5 mm, 0.6 mm, 1.8 mm, 0.28 mm, 0.8 mm
M3 (Form A), M8, M24, M5 (Form A), M12
ASME B18.21.1, DIN 7980, BS 4320G, ASME B18.22.1
ASTM F844, ASME B18.8.1