Standard, Narrow, USS, Oversized, Large Outside Diameter
Titanium, Stainless Steel, PEEK, Nylon, Phenolic Resin
4", 23 mm, 4 1/2", 5 1/2", 3 3/4"
14.5 mm, 16.5 mm, 1.625", 1.875", 10.5 mm
5.8 mm, 1 mm, 1.2 mm, 0.4 mm, 8.1 mm
BS 4320B, BS 4463, BS 4320, ASME B18.8.1, DIN 7603A