E W. EXTERNAL THREAD NPT EXTERNAL & INTERNAL NPTF EXTERNAL & INTERNAL E

Pitch TPI Pitch TPI Pitch TPI

No. of Passes No. of Passes No. of Passes

44.556789101112141618192024283248
10.450.440.430.380.340.300.280.270.260.260.240.220.240.220.210.200.180.190.16
20.400.360.380.330.290.240.250.230.230.230.210.180.210.190.190.180.150.160.14
30.350.310.330.280.240.210.220.210.200.210.170.150.160.170.150.160.120.130.06
40.310.290.280.270.230.190.210.180.180.190.150.130.150.140.130.110.100.06
50.280.270.270.250.220.180.200.170.170.170.140.120.110.110.100.060.06
60.270.240.250.190.200.170.170.160.160.150.120.100.060.060.06
70.250.230.230.180.190.170.170.140.130.120.100.09
80.240.220.210.170.160.160.150.130.120.060.060.06
90.220.210.200.160.150.140.130.110.06
100.210.200.190.140.150.130.060.06
110.200.190.180.120.120.11
120.190.180.150.100.060.06
130.180.160.120.11
140.180.150.060.06
150.170.13
160.130.06
170.06
Total4.093.643.282.742.352.061.841.661.511.391.191.050.930.890.840.710.610.540.36
W. INTERNAL THREAD
Pitch TPI
No. of Passes
44.556789101112141618192024283248
10.450.440.430.380.340.300.280.270.260.260.240.220.240.220.210.200.180.190.16
20.400.360.380.330.290.240.250.230.230.230.210.180.210.190.190.180.150.160.14
30.350.310.330.280.240.210.220.210.200.210.170.150.160.170.150.160.120.130.06
40.310.290.280.270.230.190.210.180.180.190.150.130.150.140.130.110.100.06
50.280.270.270.250.220.180.200.170.170.170.140.120.110.110.100.060.06
60.270.240.250.190.200.170.170.160.160.150.120.100.060.060.06
70.250.230.230.180.190.170.170.140.130.120.100.09
80.240.220.210.170.160.160.150.130.120.060.060.06
90.220.210.200.160.150.140.130.110.06
100.210.200.190.140.150.130.060.06
110.200.190.180.120.120.11
120.190.180.150.100.060.06
130.180.160.120.11
140.180.150.060.06
150.170.13
160.130.06
170.06
Total4.093.643.282.742.352.061.841.661.511.391.191.050.930.890.840.710.610.540.36
411.5141827811.5141827
10.320.230.220.180.1410.310.220.210.170.14
20.250.190.180.150.1120.240.170.170.140.10
30.210.170.150.130.1130.200.160.140.130.09
40.170.160.140.130.1040.160.160.140.120.09
50.160.150.130.120.0950.160.140.140.110.08
60.160.130.120.110.0860.150.130.120.100.08
70.150.120.100.090.0670.150.120.100.090.06
80.150.100.100.0880.140.110.100.08
90.140.100.090.0690.140.100.090.06
100.130.100.08100.130.100.08
110.130.090.06110.130.090.06
120.120.08120.120.08
130.120.06130.120.06
140.10140.10
150.08150.08
160.06160.06
Total2.451.681.371.050.69Total2.391.641.351.000.64
TR EXTERNAL & INTERNAL
Pitch (MM)
No. of Passes
7.06.05.04.03.02.01.5
10.380.360.340.320.310.300.24
20.340.320.300.280.260.260.22
30.280.280.250.230.230.220.17
40.260.250.230.200.190.180.14
50.250.240.220.190.190.160.12
60.230.230.210.180.180.120.06
70.220.220.190.170.150.06
80.210.200.180.160.12
90.200.190.170.150.11
100.190.170.160.140.06
110.190.160.140.12
120.180.150.130.10
130.180.130.120.06
140.160.130.10
150.160.120.06
160.150.12
170.150.11
180.140.11

Total 4.05 3.55 2.80 2.30 1.80 1.30 0.95