Parallel pipe threads (PF - G) A class Unit: mm Taper Pipe Threads (PT. R) Unit: mm

SP

SizeMajor diameter of external threadsBar Diameter
Max.Min.
PF1/16 -287.7237.5097.56
PF1/8 -289.7289.5149.57
PF1/4 -1913.15712.90713.00
PF3/8 -1916.66216.41216.50
PF1/2 -1420.95520.67120.70
PF5/8 -1422.91122.62722.70
PF3/4 -1426.44126.15726.20
PF7/8 -1430.20129.91730.00
PF1 -1133.24932.88933.00
PF1 1/8 -1137.89737.53737.60
PF1 1/4 -1141.91041.55041.60
PF1 1/2 -1147.80347.44347.50
PF2 -1159.61459.25459.30
SizeBar diameter
Taper (dia of threads end) Straight
PT1/16 -28 7.5 7.9
PT1/8 -28 9.5 9.9
PT1/4 -19 12.8 13.4
PT3/8 -19 16.3 16.9
PT1/2 -14 20.5 21.3
PT3/4 -14 25.9 26.8
PT1 -11 32.7 33.7
PT1 1/4 -11 41.2 42.3
PT1 1/2 -11 47.1 48.2
PT2 -11 58.7 60.1

ROLL

CARBIDE

LONG

HAND

TAPS

EG (STI)

SPECIAL

THREADS,

GAUGES

THREAD

MILLS

DIES

CENTER

DRILLS