P

60°

UNIFIED “J” for Aircraft (UNJ), External (mm)

Number of T.P.I.

Passes3228242018161412108
Radial in-feed per pass (mm)
10,1780,1780,1780,2030,2290,2290,2290,2790,2790,305
20,1520,1520,1520,1780,2030,2030,2030,2290,2290,279
30,1270,1020,1520,1520,1520,1520,1520,2030,2030,203
40,0760,1020,1020,1020,1270,1270,1270,1520,1520,178
50,5330,0760,0760,1020,1020,1020,1270,1520,1520,152
60,6100,6600,0760,0760,1020,1020,1020,1270,152
70,8130,8890,0760,1020,1020,1270,127
80,9910,0760,0760,1020,127
91,1181,2950,1020,127
100,0760,102
111,5490,102

12 0,076 1,930 Last pass equals total depth of thread.

P

60°

Metric “J” for Aircraft (MJ), External (mm)

Number ofPtich(mm)
Passes1,01,5 1,752,0
Radial in-feed perpass (mm)
10,22860,254
20,20320,2286
30,15240,1778
40,15240,1524
50,1270,127
60,07620,127
70,93980,1016
80,0762
1,2446

Last pass equals total depth of thread.