11 .1 under cut and thr ead p a ra met ers – HEIDENHAIN CNC Pilot 4290 User Manual
Page 441
HEIDENHAIN CNC PILOT 4290
429
11
.1 Under
cut and
Thr
ead P
a
ra
met
ers
Thread type Q
F
P
R
A
W
Q=15 UNEF US extra-fine-pitch thread
Outside
*
0.61343*F
F
30°
30°
Inside
*
0.54127*F
F
30°
30°
Q=16 NPT US taper pipe thread
Outside
*
0.8*F
F
30°
30°
Inside
*
0.8*F
F
30°
30°
Q=17 NPTF US taper dryseal pipe thread
Outside
*
0.8*F
F
30°
30°
Inside
*
0.8*F
F
30°
30°
Q=18 NPSC US cylindrical pipe thread
with lubricant
Outside
*
0.8*F
F
30°
30°
Inside
*
0.8*F
F
30°
30°
Q=18 NPFS US cylindrical pipe thread
without lubricant
Outside
*
0.8*F
F
30°
30°
Inside
*
0.8*F
F
30°
30°
11.1.5 Thread Pitch
Q=2 Metric ISO thread
Diameter
Thread pitch
1
0.25
1,1
0.25
1,2
0.25
1,4
0.3
1,6
0.35
1,8
0.35
2
0.4
2,2
0.45
2,5
0.45
3
0.5
3,5
0.6
4
0.7
4,5
0.75
5
0.8
6
1
7
1
8
1.25
9
1.25
10
1.5
11
1.5
12
1.75
14
2
16
2
18
2.5
Q=8 Cylindrical round thread
Diameter
Thread pitch
12
2.54
14
3.175
40
4.233
105
6.35
200
6.35
Diameter
Thread pitch
20
2.5
22
2.5
24
3
27
3
30
3.5
33
3.5
36
4
39
4
42
4.5
45
4.5
48
5
52
5
56
5.5
60
5.5
64
6
68
6