Pre-hole guide for forming taps
Metric fine Thread (MF) ISO DIN 13 |
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Ø mm |
Pitch P |
Ø Drill |
Ø Drill |
Ø Predrill |
||
Min. |
Max. |
Min. |
Max. |
|||
M 2,5 |
0,35 |
2,35 |
2,35 |
2,38 |
2,121 |
2,221 |
M 3 |
0,35 |
2,85 |
2,85 |
2,88 |
2,621 |
2,721 |
M 4 |
0,35 |
3,85 |
3,85 |
3,88 |
3,621 |
3,721 |
M 4 |
0,50 |
3,80 |
3,78 |
3,83 |
3,459 |
3,639 |
M 5 |
0,50 |
4,80 |
4,78 |
4,83 |
4,459 |
4,639 |
M 5,5 |
0,50 |
5,30 |
5,28 |
5,33 |
4,959 |
5,139 |
M 6 |
0,75 |
5,65 |
5,62 |
5,70 |
5,188 |
5,424 |
M 7 |
0,75 |
6,65 |
6,62 |
6,70 |
6,188 |
6,424 |
M 8 |
0,75 |
7,65 |
7,62 |
7,70 |
7,188 |
7,424 |
M 8 |
1,00 |
7,55 |
7,52 |
7,62 |
6,917 |
7,217 |
M 9 |
0,75 |
8,65 |
8,62 |
8,70 |
8,188 |
8,424 |
M 9 |
1,00 |
8,55 |
8,52 |
8,62 |
9,917 |
8,217 |
M 10 |
0,75 |
9,65 |
9,62 |
9,70 |
9,188 |
9,424 |
M 10 |
1,00 |
9,55 |
9,52 |
9,62 |
8,917 |
9,217 |
M 10 |
1,25 |
9,40 |
9,36 |
9,47 |
8,647 |
8,982 |
M 11 |
0,75 |
10,65 |
10,62 |
10,70 |
10,188 |
10,424 |
M 11 |
1,00 |
10,55 |
10,52 |
10,62 |
9,917 |
10,217 |
M 12 |
1,00 |
11,55 |
11,52 |
11,62 |
10,917 |
11,217 |
M 12 |
1,25 |
11,40 |
11,36 |
11,47 |
10,647 |
10,982 |
M 12 |
1,50 |
11,30 |
11,26 |
11,38 |
10,376 |
10,751 |
M 14 |
1,00 |
13,55 |
13,52 |
13,62 |
12,917 |
13,217 |
M 14 |
1,25 |
13,40 |
13,36 |
13,47 |
12,647 |
12,982 |
M 14 |
1,50 |
13,30 |
13,26 |
13,38 |
12,376 |
12,751 |
M 15 |
1,00 |
14,55 |
14,52 |
14,62 |
13,917 |
14,217 |
M 15 |
1,50 |
14,30 |
14,26 |
14,38 |
13,376 |
13,751 |
M 16 |
1,00 |
15,55 |
15,52 |
15,62 |
14,917 |
15,217 |
M 16 |
1,50 |
15,30 |
15,26 |
15,38 |
14376 |
14,751 |
M 17 |
1,00 |
16,55 |
16,52 |
16,62 |
15,917 |
16,217 |
M 17 |
1,50 |
16,30 |
16,26 |
16,38 |
15,376 |
15,751 |
M 18 |
1,00 |
17,55 |
17,52 |
17,62 |
16,917 |
17,217 |
M 18 |
1,50 |
17,30 |
17,26 |
17,38 |
16,376 |
16,751 |
M 18 |
2,00 |
17,10 |
17,05 |
17,2 |
15,835 |
16,31 |
M 20 |
1,00 |
19,55 |
19,52 |
19,62 |
18,917 |
19,217 |
M 20 |
1,50 |
19,30 |
19,26 |
19,38 |
18,376 |
19,751 |
M 24 |
1,00 |
23,55 |
23,52 |
23,62 |
22,917 |
23,217 |
M 24 |
1,50 |
23,30 |
23,26 |
23,38 |
22,376 |
22,751 |
M 24 |
2,00 |
23,10 |
23,05 |
23,2 |
21,835 |
22,31 |
M 27 |
1,50 |
26,30 |
26,26 |
26,38 |
25,376 |
25,751 |
M 30 |
1,50 |
29,30 |
29,26 |
29,38 |
28,376 |
28,751 |
M 33 |
1,50 |
32,30 |
32,26 |
32,38 |
31,376 |
31,751 |
M 36 |
1,50 |
35,30 |
35,26 |
35,38 |
34,376 |
34,751 |
M 39 |
1,50 |
38,30 |
38,26 |
38,38 |
37,376 |
37,751 |
M 42 |
1,50 |
41,30 |
41,26 |
41,38 |
42,376 |
42,751 |
* M2,5x0,35 up to M4x0,35, ø predrill nut thread 6H
Metric Thread · (M) ISO DIN 13 |
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Ø mm |
Pitch P |
Ø Drill |
Ø Drill |
Ø Predrill |
||
Min. |
Max. |
Min. |
Max. |
|||
M 1 |
0,25 |
0,90 |
0,89 |
0,92 |
0,729 |
0,819 |
M 1,2 |
0,25 |
1,10 |
1,09 |
1,12 |
0,929 |
1,019 |
M 1,4 |
0,30 |
1,28 |
1,27 |
1,30 |
1,075 |
1,181 |
M 1,6 |
0,35 |
1,46 |
1,45 |
1,48 |
1,221 |
1,346 |
M 1,7 |
0,35 |
1,56 |
1,55 |
1,58 |
1,321 |
1,446 |
M 1,8 |
0,35 |
1,66 |
1,65 |
1,68 |
1,421 |
1,546 |
M 2 |
0,40 |
1,85 |
1,84 |
1,88 |
1,567 |
1,679 |
M 2,2 |
0,45 |
2,00 |
2,01 |
2,05 |
1,713 |
1,838 |
M 2,5 |
0,45 |
2,30 |
2,28 |
2,32 |
2,013 |
2,138 |
M 3 |
0,50 |
2,80 |
2,78 |
2,85 |
2,459 |
2,639 |
M 3,5 |
0,60 |
3,25 |
3,23 |
3,30 |
2,850 |
3,050 |
M 4 |
0,70 |
3,70 |
3,68 |
3,76 |
3,242 |
3,466 |
M 4,5 |
0,75 |
4,20 |
- | - | - | - |
M 5 |
0,80 |
4,65 |
4,62 |
4,71 |
4,134 |
4,384 |
M 6 |
1,00 |
5,55 |
5,52 |
5,62 |
4,917 |
5,217 |
M 7 |
1,00 |
6,55 |
6,52 |
6,62 |
5,917 |
6,217 |
M 8 |
1,25 |
7,40 |
7,36 |
7,47 |
6,647 |
6,982 |
M 9 |
1,25 |
8,40 |
8,36 |
8,47 |
7,647 |
7,982 |
M 10 |
1,50 |
9,30 |
9,26 |
9,38 |
8,376 |
8,751 |
M 11 |
1,50 |
10,30 |
10,26 |
10,38 |
9,376 |
9,751 |
M 12 |
1,75 |
11,20 |
11,15 |
11,29 |
10,106 |
10,531 |
M 14 |
2,00 |
13,10 |
13,05 |
13,20 |
11,835 |
12,310 |
M 16 |
2,00 |
15,10 |
15,05 |
15,20 |
13,835 |
14,310 |
M 18 |
2,50 |
16,90 |
16,83 |
17,02 |
15,294 |
15,854 |
M 20 |
2,50 |
18,90 |
18,83 |
19,02 |
17,294 |
17,854 |
M 22 |
2,50 |
20,90 |
20,83 |
21,02 |
19,294 |
19,854 |
M 24 |
3,00 |
22,70 |
22,62 |
22,80 |
20,752 |
21,382 |
M 27 |
3,00 |
25,70 |
25,62 |
25,80 |
23,752 |
24,382 |
M 30 |
3,50 |
28,50 |
28,40 |
28,60 |
26,211 |
26,921 |
M 33 |
3,50 |
31,50 |
31,40 |
31,60 |
29,211 |
29,921 |
M 36 |
4,00 |
34,30 |
34,17 |
34,40 |
31,670 |
32,420 |
M 39 |
4,00 |
37,30 |
37,17 |
37,40 |
34,670 |
35,420 |
M 42 |
4,50 |
40,10 |
39,95 |
40,20 |
37,129 |
37,979 |
* M1,1 up to M1,4, ø predrill nut thread 5h
Tolerance range for pre-drilling in forming threads - DIN 13
Due to the higher toughness of forming threads, the 7H tolerance is sufficient to achieve the correct fit of male and female threads, not less than 0.32xP.