Spring, Crinkle, Nylon Washers, Full Washers, Form A
Stainless Steel, Copper, TPE, Nylon, Brass
15.5 mm, 12 mm, 6.9 mm, 10 mm, 11.88 mm
2.1 mm, 3.2 mm, 2.25 mm, 4.36 mm, 6.5 mm
8.1 mm, 1.2 mm, 1.6 mm, 1.1 mm, 0.16 mm
M3.5, M2.5, M3 (Form A), M20, M5 (Form A)
ASME B18.8.1, ASME B18.21.1, BS 4320B, DIN 7603A, BS 4320