Mil-Spec, Large Outside Diameter, Beveled, Standard, SAE
Steel, Titanium, Phenolic Resin, Alloy Steel, Nylon
45 mm, 2 1/4", 4 1/2", 5 1/2", 59/64"
14.5 mm, 16.5 mm, 20.2 mm, 1.172", 0.281"
8.1 mm, 0.4 mm, 1.6 mm, 0.16 mm, 0.28 mm
#4, 1/2", #10, #12, 7/16"
DIN 125A, BS 4320B, DIN 7980, BS 4320:1968, DIN 7603A