SAE, Mil-Spec, Oversized, Narrow, Standard
Titanium, Steel, Nylon, PEEK, Phenolic Resin
40 mm, 19 mm, 3 3/4", 13/16", 28 mm
0.938", 0.391", 1.313", 1.188", 1.109"
1.6 mm, 5.8 mm, 1.2 mm, 1 mm, 1.5 mm
1", M8, 5/16", 1 1/8", 3/8"
BS 4320B, DIN 127B, DIN 7980, BS 4320G, ASME B18.21.1