American Pipe Threads (NPSC) Unit: mm American Pipe Threads (NPSM) Unit: mm

SP

SizeMinor D Max.iameter Min.Drill SizeRecommended Hole Size
NPSC1/16-276.6046.3006.506.53
NPSC1/8-278.9408.6368.808.86
NPSC1/4-1811.63311.22711.5011.53
NPSC3/8-1815.08714.65614.9014.98
NPSC1/2-1418.64318.16118.5018.52
NPSC3/4-1424.00323.49523.7523.88
NPSC1-11.530.07329.49029.8029.93
NPSC1 1/4-11.538.83638.25338.5038.69
NPSC1 1/2-11.544.90744.32344.7544.76
NPSC2-11.556.94656.36356.7556.80
SizeMinor D Max.iameter Min.Drill SizeRecommended Hole Size
NPSM1/16-276.8986.7476.806.86
NPSM1/8-279.2469.0949.209.21
NPSM1/4-1812.21711.88812.1012.13
NPSM3/8-1815.55415.31715.5015.49
NPSM1/2-1419.27818.97419.2019.20
NPSM3/4-1424.63824.33424.5024.60
NPSM1-11.530.75930.50630.6030.70
NPSM1 1/4-11.539.49739.26939.4039.40
NPSM1 1/2-11.545.56745.33945.5045.50
NPSM2-11.557.60757.37957.5057.60

ST NPSC 2 - 11.5 56.946 56.363 56.75 56.80 NPSM 2 - 11.5 57.607 57.379 57.50 57.60

Dryseal American Pipe Threads (NPSF) Unit: mm

ROLL

SizeMinor D Max.iameter Min.Drill SizeRecommended Hole Size
NPSF1/16-276.4826.3056.406.44
NPSF1/8-278.7408.6528.708.72
NPSF1/4-1811.36311.23211.3011.33
NPSF3/8-1814.80314.67214.7514.77
NPSF1/2-1418.28818.11818.2518.20
NPSF3/4-1423.63423.46523.5023.50
NPSF1-11.529.66929.46429.5029.60
NPSF1 1/4-11.538.51438.22038.3038.40
NPSF1 1/2-11.544.58444.29044.5044.50
NPSF2-11.556.62156.32856.5056.50

CARBIDE

LONG

TAPS NPSF 2 - 11.5 56.621 56.328 56.50 56.50

EG (STI)

SPECIAL

THREADS,

GAUGES

THREAD

MILLS

DIES

CENTER

DRILLS