Specifications of historical Thread Standards

Bodmer Thread, formerly it was a thread for mechanical and optical instruments.
The flank angle is 50°.

Major Diameter
mm
Tapping
Drill Size
mm
Pitch
mm
Threads
on 25 mm
3.0002.1070.62540
3.5002.6070.62540
4.0002.9780.71535
4.5003.4780.71535
5.0003.8080.83430
5.5004.3080.83430
6.0004.8080.83430
7.0005.5701.00025
8.0006.6701.00025
9.0007.2131.25020
10.0008.2131.25020
11.0009.2131.25020
12.0009.8971.47117
13.00010.8971.47117
14.00011.5351.72414.5
15.00012.5351.72414.5
16.00013.1412.00012.5
18.00015.1412.00012.5
20.00016.4262.50010
22.00018.4262.50010
24.00020.0262.7809
26.00022.0262.7809
28.00023.5323.1258
30.00025.5323.1258
32.00026.8953.5717
34.00028.8953.5717
38.00032.0434.1676
42.00036.0434.1676
46.00038.8525.0005
50.00042.8525.0005
Bodmer Thread