ISO METRIC

EXTERNAL THREAD

RECOMMENDED NO OF PASSES

NO OFPITCH( MM)
PASSES65.554.543.532.521.751.51.2510.750.50.35
10.450.430.420.390.340.340.270.260.240.230.230.200.190.170.110.1
20.370.360.370.330.300.310.230.220.230.210.210.180.160.150.090.08
30.330.310.310.290.250.240.200.200.190.160.180.140.130.110.080.06
40.280.270.280.250.210.200.180.170.170.140.160.120.100.060.06
50.260.250.250.230.190.190.170.160.150.120.110.100.06
60.240.230.230.200.180.170.160.140.120.100.060.06
70.230.220.210.190.160.160.150.130.100.08
80.220.200.200.180.150.150.130.120.060.06
90.200.190.190.160.150.140.120.10
100.190.180.180.150.140.120.110.06
110.180.170.160.140.130.100.09
120.170.160.140.120.120.060.06
130.160.150.100.100.10
140.140.120.060.060.06
150.130.10
160.100.06
170.06
18
TOTAL3.713.403.102.792.482.181.871.561.261.100.950.800.640.490.340.24

ISO METRIC

INTERNAL THREAD

RECOMMENDED NO OF PASSES

NO OFPITCH( MM)
PASSES65.554.543.532.521.751.51.2510.750.50.35
10.440.430.420.360.320.320.250.250.230.220.220.190.180.160.100.09
20.360.340.370.320.270.290.220.210.210.200.200.160.150.140.090.08
30.320.290.280.280.220.230.190.190.180.150.170.130.120.100.070.06
40.270.240.260.250.200.190.170.160.160.130.150.110.100.060.06
50.250.230.240.220.190.180.160.150.140.110.100.100.06
60.230.220.210.190.180.160.160.130.110.090.060.06
70.220.210.200.180.160.150.140.120.090.08
80.210.200.190.170.150.140.120.110.060.06
90.190.180.180.150.140.130.110.09
100.170.160.160.140.140.110.100.06
110.160.160.140.120.120.090.08
120.150.150.120.100.100.060.06
130.140.140.090.090.09
140.130.110.060.060.06
150.110.09
160.090.06
170.06
18
TOTAL3.503.212.922.632.342.051.761.471.181.040.900.750.610.460.320.23