Standard, Beveled, SAE, Large Outside Diameter, Mil-Spec
Alloy Steel, Titanium, Stainless Steel, Nylon, Brass
1 17/32", 5.5 mm, 17 mm, 21 mm, 9.5 mm
6.5 mm, 8.4 mm, 14.5 mm, 16.5 mm, 20.2 mm
1.25 mm, 3 mm, 0.16 mm, 0.28 mm, 1.6 mm
DIN 7980, DIN 6797J, BS 4320:1968, DIN 125A, ASME B18.21.1