Operation Manual

HEIDENHAIN CNC PILOT 640 609
9.1 Thread pitch
Thread pitch
Q = 2 Metric ISO thread
Q=12 Nonstandard thread – – – – –
Q=13 UNC US coarse thread External * 0.61343*F F 30° 30°
Internal * 0.54127*F F 30° 30°
Q=14 UNF US fine-pitch thread External * 0.61343*F F 30° 30°
Internal * 0.54127*F F 30° 30°
Q=15 UNEF U.S. extra-fine-pitch thread External * 0.61343*F F 30° 30°
Internal * 0.54127*F F 30° 30°
Q=16 NPT U.S. taper pipe thread External * 0.8*F F 30° 30°
Internal * 0.8*F F 30° 30°
Q=17 NPTF U.S. taper dryseal pipe thread External * 0.8*F F 30° 30°
Internal * 0.8*F F 30° 30°
Q=18 NPSC U.S. cylindrical pipe thread with lubricant External * 0.8*F F 30° 30°
Internal * 0.8*F F 30° 30°
Q=19 NPFS U.S. cylindrical pipe thread without
lubricant
External * 0.8*F F 30° 30°
Internal * 0.8*F F 30° 30°
Thread type Q F P R A W
Diameter Thread pitch Diameter Thread pitch Diameter Thread pitch
10.25 6 1 273
1.1 0.25 7 1 30 3.5
1.2 0.25 8 1.25 33 3.5
1.4 0.3 9 1.25 36 4
1.6 0.35 10 1.5 39 4
1.8 0.35 11 1.5 42 4.5
2 0.4 12 1.75 45 4.5
2.2 0.45 14 2 48 5
2.5 0.45 16 2 52 5
3 0.5 18 2.5 56 5.5
3.5 0.6 20 2.5 60 5.5
40.7 222.5 646
4.5 0.75 24 3 68 6
50.8