International Taps torque comparison table and Gb screw holes diameter drill cross-references
Some customer ask me some question about how to get the right torque when tapping, now i give you the list to show the right torque when you tapping, please adjust the right torque when you tapping, then you will get good tapping result.
International Taps torque comparison table
Tap size mm |
M1 |
M2 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
Torque N.m |
0.04 |
0.22 |
0.54 |
1.40 |
2.30 |
4.20 |
8.50 |
15.0 |
25.0 |
37.0 |
45.0 |
tap size Mm |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
M45 |
Torque |
75.0 |
86.0 |
99.0 |
147 |
170 |
250 |
290 |
400 |
450 |
500 |
650 |
Size Mm |
M48 |
M52 |
M56 |
M60 |
M64 |
M68 |
M72 |
M76 |
M80 |
- |
- |
Torque N.m |
800 |
900 |
1200 |
1300 |
1600 |
1700 |
1900 |
2000 |
2000 |
- |
- |
I have one customer who open a new factory, he have brought our air tapping machine, but he do not konw drill what size holes before tapping, now i make the list for the customer's reference and also for many others who not know this information.
Gb screw holes diameter drill cross-references
Screw hole |
M1 |
M2 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
Drill Dia. mm |
0.75 |
1.6 |
2.5 |
3.3 |
4.2 |
5 |
6.8 |
8.6 |
10.2 |
12 |
14 |
Screw hole |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
M45 |
Drill Dia. mm |
15.5 |
17.5 |
19.5 |
21 |
24 |
26.5 |
29.5 |
32 |
35 |
37.5 |
40.5 |
Screw hole |
M48 |
M52 |
M56 |
M60 |
M64 |
M68 |
M72 |
M76 |
M80 |
- |
- |
Drill dia. mm |
43 |
47 |
50.5 |
54.5 |
58 |
62 |
66 |
70 |
74 |
- |
- |
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