3-3/4", 3-7/8", 4-1/2", 4-3/8", 5-3/8"
21 mm, 5.5 mm, 55 mm, 36 mm, 15 mm
Metric, Whitworth, Imperial, SAE, SAE/Metric
Beryllium Copper, Chrome Vanadium Steel, Aluminium Bronze, Drop Forged Carbon Steel, Alloy Steel
Satin, Black Oxide, Mirror, Full Polish, Black Chrome
ASME B107.6., DIN3113, ASME B107.6
BS192:1982., DIN 3113B, DIN 3113.