Mil-Spec, SAE, Standard, USS, Large Outside Diameter
Steel, Nylon, Phenolic Resin, Alloy Steel, Titanium
18 mm, 5/8", 2 3/16", 1 37/64", 15/16"
0.281", 0.375", 0.75", 0.875", 1.125"
2.5 mm, 1.65 - 1.90 mm, 4 mm, 0.5 mm, 1.08 mm
M14, 1 1/2", #12, 1 1/8", 5/16"
BS 4320, ASME B18.22.1
ASTM F844, BS 3410, DIN 127B, ASME B18.8.1