Standard, Large Outside Diameter, USS, Mil-Spec, SAE
Steel, Stainless Steel, Nylon, Phenolic Resin, Brass
40 mm, 1/2", 16 mm, 26 mm, 5 1/2"
0.375", 0.391", 1.375", 0.594", 1.063"
0.8 mm, 1.25 mm, 0.16 mm, 0.28 mm, 0.3 mm
BS 4320, DIN 7980, DIN 6797J, DIN 125A, ASME B18.21.1