Mil-Spec, Oversized, Standard, Beveled, Large Outside Diameter
Nylon, Phenolic Resin, Brass, Alloy Steel, Titanium
1 3/4", 20 mm, 2 3/16", 1 37/64", 15/16"
1.156", 0.313", 0.75", 0.875", 1.125"
1.2 mm, 0.6 mm, 0.3 → 0.25 mm, 1.65 - 1.90 mm, 1.08 mm
BS 4320:1968, ASTM F436, BS 4320G, ASME B18.22.1
ASTM F844, BS 3410