Specifications of International Thread Standards

Bodmer Thread

Bodmer Thread, formerly it was a thread for mechanical and optical instruments.
Major Diameter
mm
Tapping
Drill Size
mm
Pitch
mm
Threads
on 25 mm
3,000 2,107 0,625 40
3,500 2,607 0,625 40
4,000 2,978 0,715 35
4,500 3,478 0,715 35
5,000 3,808 0,834 30
5,500 4,308 0,834 30
6,000 4,808 0,834 30
7,000 5,570 1,000 25
8,000 6,670 1,000 25
9,000 7,213 1,250 20
10,000 8,213 1,250 20
11,000 9,213 1,250 20
12,000 9,897 1,471 17
13,000 10,897 1,471 17
14,000 11,535 1,724 14,5
15,000 12,535 1,724 14,5
16,000 13,141 2,000 12,5
18,000 15,141 2,000 12,5
20,000 16,426 2,500 10
22,000 18,426 2,500 10
24,000 20,026 2,780 9
26,000 22,026 2,780 9
28,000 23,532 3,125 8
30,000 25,532 3,125 8
32,000 26,895 3,571 7
34,000 28,895 3,571 7
38,000 32,043 4,167 6
42,000 36,043 4,167 6
46,000 38,852 5,000 5
50,000 42,852 5,000 5
Bodmer Thread