SAE, Narrow, Standard, Large Outside Diameter, Mil-Spec
Nylon, Phenolic Resin, Alloy Steel, Steel, Stainless Steel
15 mm, 4", 26 mm, 23 mm, 3 3/4"
14.5 mm, 16.5 mm, 0.563", 1.172", 1.5"
5.8 mm, 1.2 mm, 1.5 mm, 0.28 mm, 0.7 mm
DIN 7603, ASME B18.22.1
ASTM F844, ASME B18.8.1, DIN 7603A, BS 4320B