Narrow, Standard, SAE, USS, Large Outside Diameter
Stainless Steel, Nylon, Phenolic Resin, Titanium, PEEK
14 mm, 26 mm, 5 1/2", 3 3/4", 2"
16.5 mm, 20.2 mm, 0.172", 1.172", 1.281"
1.2 mm, 0.4 mm, 0.28 mm, 3 mm, 0.3 mm
DIN 7603, DIN 7980, ASME B18.8.1, ASME B18.22.1
ASTM F844, BS 4320B