Standard, Mil-Spec, USS, Beveled, Large Outside Diameter
Nylon, Phenolic Resin, Brass, Stainless Steel, Alloy Steel
24 mm, 18 mm, 2 3/16", 1 37/64", 15/16"
17 mm, 0.625", 0.75", 0.875", 1.125"
NL-19, Plain, Armor Coat, Black Oxide, Zinc Yellow
0.9 mm, 1.1 mm, 5/64", 9/32", 17/64"