Standard, SAE, Narrow, Beveled, Large Outside Diameter
Alloy Steel, Stainless Steel, Phenolic Resin, Titanium, PEEK
45 mm, 4", 19 mm, 26 mm, 2 3/4"
1.375", 0.391", 1.188", 1.563", 1.109"
5.8 mm, 0.6 mm, 1.6 mm, 1.5 mm, 0.28 mm
BS 4320:1968, BS 4320G, DIN 127B, BS 4463, BS 4320B