Narrow, Mil-Spec, Standard, Large Outside Diameter, SAE
Nylon, Brass, Alloy Steel, Titanium, Phenolic Resin
25 mm, 40 mm, 23 mm, 4 1/2", 3 3/4"
0.938", 0.391", 1.563", 1.313", 1.109"
0.8 mm, 0.16 mm, 1.5 mm, 0.28 mm, 0.3 mm
M2.6, 2 1/2", 3/8", 7/8", M20
BS 4320, ASME B18.8.1, DIN 6797J, BS 4320:1968, DIN 125A