Narrow, Standard, Mil-Spec, SAE, Large Outside Diameter
Steel, Phenolic Resin, Brass, Alloy Steel, Titanium
2 1/4", 1", 2 3/16", 1 37/64", 15/16"
1.25", 0.188", 0.875", 1.125", 1.5"
8.1 mm, 0.3 → 0.25 mm, 2.5 mm, 1.65 - 1.90 mm, 1.08 mm
1 1/2", 1/4", M14, 1 3/8", 7/16"
DIN 6797J, ASTM F436, ASME B18.22.1
ASTM F844, BS 3410, DIN 7980