SAE, Large Outside Diameter, USS, Oversized, Standard
Nylon, Alloy Steel, Titanium, PEEK, Phenolic Resin
40 mm, 45 mm, 20 mm, 23 mm, 5 1/2"
0.172", 0.25", 0.391", 1.188", 0.313"
0.6 mm, 8.1 mm, 2.5 mm, 0.8 mm, 0.28 mm
3/8", #4, M3.5, M4, 9/16"
BS 4320:1968, BS 4463, ASME B18.21.1, BS 4320G, BS 4320B