Spring, External Tooth, Mudguard, Full Washers, Form A
TPE, Steel, Copper, Stainless Steel, Brass
4 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
13 mm, 12.2 mm, 17 mm, 2.25 mm, 6.5 mm
0.28 mm, 3 mm, 1.6 mm, 1 mm, 2.5 mm
M20, M5 (Form A), M16, M5, M2.5
DIN 125A, ASME B18.8.1, BS 4320B, BS 4463, ASME B18.21.1