Standard, Narrow, SAE, Large Outside Diameter, Mil-Spec
Nylon, Phenolic Resin, Brass, Alloy Steel, Titanium
45 mm, 25 mm, 1 3/16", 2 1/4", 3 1/2"
0.25", 0.391", 1.375", 0.594", 0.41"
5.8 mm, 3.5 mm, 8.1 mm, 1.2 mm, 0.28 mm
BS 4320B, BS 4320:1968, DIN 7603, ASME B18.22.1
ASTM F844, ASME B18.21.1