Large Outside Diameter, Mil-Spec, SAE, Beveled, USS
Nylon, Phenolic Resin, Titanium, Stainless Steel, Steel
5.5 mm, 21 mm, 1/2", 9.5 mm, 11.1 mm
14.5 mm, 20.2 mm, 13.27 mm, 1.172", 0.281"
1.75 mm, 1.5 mm, 0.16 mm, 0.28 mm, 0.7 mm
DIN 7980, BS 4463, BS 4320, DIN 6797J, DIN 125A