Mil-Spec, SAE, USS, Large Outside Diameter, Beveled
Steel, Alloy Steel, Stainless Steel, Titanium, Nylon
3 1/2", 40 mm, 1 5/8", 1 3/4", 18 mm
16.5 mm, 20.2 mm, 13.27 mm, 1.172", 0.125"
1.25 mm, 1.5 mm, 0.16 mm, 0.28 mm, 0.3 mm
ASTM F436, BS 4320, DIN 7980, DIN 6797J, DIN 125A