4", 3-3/4", 3-7/8", 4-1/2", 4-1/4"
21 mm, 55 mm, 26 mm, 36 mm, 15 mm
Whitworth, Imperial, Metric, SAE, SAE/Metric
Aluminium Bronze, Chrome Vanadium Steel, Drop Forged Carbon Steel, Beryllium Copper, Alloy Steel
Black Oxide, Mirror, Full Polish, Black Chrome, Chrome
ASME B107.6
BS192:1982., DIN 3113., BS192:1982.
DIN 3113, DIN3113, ASME B107.6.