Metric Machine Screws Tap Drills Chart
This table is the chart for publication of information of metric machine screws, along with tap and clearance drill information. If all else fails, you may want to use our Drill Size Conversion Table or our Tap Drill Size Calculator. The information available from our sources is usually sufficient for all computer related drill or screw requirements world wide.
US sizes Machine Screw Size Chart
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Metric Screw Sizes
Screw Size |
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Tapping Drills |
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Clearance Drills |
Nom. Dia. (mm) | Pitch (mm) | Series |
Drill Size (65-75% thread) | Dec. Equiv. |
Close Fit | Free Fit |
Drill Size | Dec. Equiv. | Drill Size | Dec. Equiv. |
|
1 | 0.20 | Fine |
0.80 | 0.0315 |
1.05 | 0.0413 | 1.20 | 0.0472 |
0.25 | Coarse |
0.75 | 0.0295 |
1.1 | 0.20 | Fine |
0.90 | 0.0354 |
1.15 | 0.0453 | 1.30 | 0.0512 |
0.25 | Coarse |
0.85 | 0.0335 |
1.2 | 0.20 | Fine |
1.00 | 0.0394 |
1.30 | 0.0512 | 1.50 | 0.0590 |
0.25 | Coarse |
0.95 | 0.0374 |
1.4 | 0.20 | Fine |
1.20 | 0.0472 |
1.50 | 0.0591 | 1.70 | 0.0669 |
0.30 | Coarse |
1.10 | 0.0433 |
1.6 | 0.20 | Fine |
1.40 | 0.0551 |
1.70 | 0.0669 | 2.00 | 0.0787 |
0.35 | Coarse |
1.25 | 0.0492 |
1.8 | 0.20 | Fine |
1.60 | 0.0630 |
1.90 | 0.0748 | 2.20 | 0.0866 |
0.35 | Coarse |
1.45 | 0.0571 |
2 | 0.25 | Fine |
1.75 | 0.0689 |
2.20 | 0.0866 | 2.60 | 0.1024 |
0.40 | Coarse |
1.60 | 0.0630 |
2.2 | 0.25 | Fine |
1.95 | 0.0768 |
2.40 | 0.0945 | 2.80 | 0.1102 |
0.45 | Coarse |
1.75 | 0.0689 |
2.5 | 0.35 | Fine |
2.15 | 0.0846 |
2.70 | 0.1063 | 3.10 | 0.1220 |
0.45 | Coarse |
2.05 | 0.0807 |
3 | 0.35 | Fine |
2.65 | 0.1043 |
3.20 | 0.1260 | 3.60 | 0.1417 |
0.50 | Coarse |
2.50 | 0.0984 |
3.5 | 0.35 | Fine |
3.15 | 0.1240 |
3.70 | 0.1457 | 4.20 | 0.1653 |
0.60 | Coarse |
2.90 | 0.1142 |
4 | 0.50 | Fine |
3.50 | 0.1378 |
4.30 | 0.1693 | 4.80 | 0.1890 |
0.70 | Coarse |
3.30 | 0.1299 |
4.5 | 0.50 | Fine |
4.00 | 0.1575 |
4.80 | 0.1890 | 5.30 | 0.2087 |
0.75 | Coarse |
3.70 | 0.1457 |
5 | 0.50 | Fine |
4.50 | 0.1772 |
5.30 | 0.2087 | 5.80 | 0.2283 |
0.80 | Coarse |
4.20 | 0.1654 |
6 | 0.75 | Fine |
5.25 | 0.2067 |
6.40 | 0.2520 | 7.00 | 0.2756 |
1.00 | Coarse |
5.00 | 0.1969 |
7 | 0.75 | Fine |
6.25 | 0.2461 |
7.40 | 0.2913 | 8.00 | 0.3150 |
1.00 | Coarse |
6.00 | 0.2362 |
8 | 0.75 | Fine |
7.25 | 0.2854 |
8.40 | 0.3307 | 10.00 | 0.3937 |
1.00 | Fine |
7.50 | 0.2953 |
1.25 | Coarse |
6.80 | 0.2677 |
9 | 0.75 | Fine |
8.25 | 0.3248 |
9.50 | 0.3740 | 10.50 | 0.4134 |
1.00 | Fine |
8.00 | 0.3150 |
1.25 | Coarse |
7.80 | 0.3071 |
10 | 0.75 | Fine |
9.25 | 0.3642 |
10.50 | 0.4134 | 12.00 | 0.4724 |
1.00 | Fine |
9.00 | 0.3543 |
1.25 | Fine |
8.80 | 0.3465 |
1.50 | Coarse |
8.50 | 0.3346 |
11 | 0.75 | Fine |
10.25 | 0.4035 |
12.00 | 0.4724 | 13.00 | 0.5118 |
1.00 | Fine |
10.00 | 0.3937 |
1.50 | Coarse |
9.50 | 0.3740 |
12 | 1.00 | Fine |
11.00 | 0.4331 |
13.00 | 0.5118 | 15.00 | 0.5905 |
1.25 | Fine |
10.75 | 0.4232 |
1.50 | Fine |
10.50 | 0.4134 |
1.75 | Coarse |
10.20 | 0.4016 |
14 | 1.00 | Fine |
13.00 | 0.5118 |
15.00 | 0.5905 | 17.00 | .6693 |
1.25 | Fine |
12.80 | 0.5039 |
1.50 | Fine |
12.50 | 0.4921 |
2.00 | Coarse |
12.00 | 0.4724 |
15 | 1.00 | Fine |
14.00 | 0.5512 |
16.00 | 0.6299 | 18.00 | 0.7087 |
1.50 | Fine |
13.50 | 0.5315 |
16 | 1.00 | Fine |
15.00 | 0.5906 |
17.00 | 0.6693 | 19.00 | 0.7480 |
1.50 | Fine |
14.50 | 0.5709 |
2.00 | Coarse |
14.00 | 0.5512 |
17 | 1.00 | Fine |
16.00 | 0.6299 |
18.00 | 0.7087 | 20.00 | 0.7874 |
1.50 | Fine |
15.50 | 0.6103 |
18 | 1.00 | Fine |
17.00 | 0.6693 |
19.00 | 0.7480 | 21.00 | 0.8268 |
1.50 | Fine |
16.50 | 0.6496 |
2.00 | Fine |
16.00 | 0.6299 |
2.50 | Coarse |
15.50 | 0.6102 |
20 | 1.00 | Fine |
19.00 | 0.7480 |
21.00 | 0.8268 | 24.00 | 0.9449 |
1.50 | Fine |
18.50 | 0.7283 |
2.00 | Fine |
18.00 | 0.7087 |
2.50 | Coarse |
17.50 | 0.6890 |
22 | 1.00 | Fine |
21.00 | 0.8268 |
23.00 | 0.9055 | 26.00 | 1.0236 |
1.50 | Fine |
20.50 | 0.8071 |
2.00 | Fine |
20.00 | 0.7874 |
2.50 | Coarse |
19.50 | 0.7677 |
24 | 1.00 | Fine |
23.00 | 0.9055 |
25.00 | 0.9842 | 28.00 | 1.1024 |
1.50 | Fine |
22.50 | 0.8858 |
2.00 | Fine |
22.00 | 0.8661 |
3.00 | Coarse |
21.00 | 0.8268 |
25 | 1.00 | Fine |
24.00 | 0.9449 |
26.00 | 1.0236 | 30.00 | 1.1811 |
1.50 | Fine |
23.50 | 0.9252 |
2.00 | Fine |
23.00 | 0.9055 |
26 | 1.50 | Fine |
24.50 | 0.9646 |
|
|
|
|
27 | 1.00 | Fine |
26.00 | 1.0236 |
28.00 | 1.1024 | 32.00 | 1.2598 |
1.50 | Fine |
25.50 | 1.0039 |
2.00 | Fine |
25.00 | 0.9843 |
3.00 | Coarse |
24.00 | 0.9449 |
28 | 1.00 | Fine |
27.00 | 1.0630 |
|
|
|
|
1.50 | Fine |
26.50 | 1.0433 |
2.00 | Fine |
26.00 | 1.0236 |
30 | 1.00 | Fine |
29.00 | 1.1417 |
31.00 | 1.2205 | 35.00 | 1.3779 |
1.50 | Fine |
28.50 | 1.1220 |
2.00 | Fine |
28.00 | 1.1024 |
3.00 | Fine |
27.00 | 1.0630 |
3.50 | Coarse |
26.50 | 1.0433 |
32 | 1.50 | Fine |
30.50 | 1.2008 |
|
|
|
|
2.00 | Fine |
30.00 | 1.1811 |
33 | 1.50 | Fine |
31.50 | 1.2402 |
34.00 | 1.3386 | 38.00 | 1.4961 |
2.00 | Fine |
31.00 | 1.2205 |
3.00 | Fine |
30.00 | 1.1811 |
3.50 | Coarse |
29.50 | 1.1614 |
35 | 1.50 | Fine |
33.50 | 1.3189 |
|
|
|
|
2.00 | Fine |
33.00 | 1.2992 |
36 | 1.50 | Fine |
34.50 | 1.3583 |
37.00 | 1.4567 | 42.00 | 1.6535 |
2.00 | Fine |
34.00 | 1.3386 |
3.00 | Fine |
33.00 | 1.2992 |
4.00 | Coarse |
32.00 | 1.2598 |
39 | 1.50 | Fine |
37.50 | 1.4764 |
40.00 | 1.5748 | 45.00 | 1.7716 |
2.00 | Fine |
37.00 | 1.4567 |
3.00 | Fine |
36.00 | 1.4173 |
4.00 | Coarse |
35.00 | 1.3780 |
40 | 1.50 | Fine |
38.50 | 1.5157 |
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|
|
|
2.00 | Fine |
38.00 | 1.4961 |
3.00 | Fine |
37.00 | 1.4567 |
42 | 1.50 | Fine |
40.50 | 1.5945 |
43.00 | 1.6929 | 48.00 | 1.8898 |
2.00 | Fine |
40.00 | 1.5748 |
3.00 | Fine |
39.00 | 1.5354 |
4.00 | Fine |
38.00 | 1.4961 |
4.50 | Coarse |
37.50 | 1.4764 |
45 | 1.50 | Fine |
43.50 | 1.7126 |
46.00 | 1.8110 | 52.00 | 2.0472 |
2.00 | Fine |
43.00 | 1.6929 |
3.00 | Fine |
42.00 | 1.6535 |
4.00 | Fine |
41.00 | 1.6142 |
4.50 | Coarse |
40.50 | 1.5945 |
48 | 1.50 | Fine |
46.50 | 1.8307 |
50.00 | 1.9685 | 56.00 | 2.2047 |
2.00 | Fine |
46.00 | 1.8110 |
3.00 | Fine |
45.00 | 1.7717 |
4.00 | Fine |
44.00 | 1.7323 |
5.00 | Coarse |
43.00 | 1.6929 |
50 | 1.50 | Fine |
48.50 | 1.9094 |
|
|
|
|
2.00 | Fine |
48.00 | 1.8898 |
3.00 | Fine |
47.00 | 1.8504 |
52 | 1.50 | Fine |
50.50 | 1.9882 |
54.00 | 2.1260 | 62.00 | 2.4409 |
2.00 | Fine |
50.00 | 1.9685 |
3.00 | Fine |
49.00 | 1.9291 |
4.00 | Fine |
48.00 | 1.8898 |
5.00 | Coarse |
47.00 | 1.8504 |
55 | 1.50 | Fine |
53.50 | 2.1063 |
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|
|
|
2.00 | Fine |
53.00 | 2.0866 |
3.00 | Fine |
52.00 | 2.0472 |
4.00 | Fine |
51.00 | 2.0079 |
56 | 1.50 | Fine |
54.50 | 2.1457 |
58.00 | 2.2835 | 66.00 | 2.5984 |
2.00 | Fine |
54.00 | 2.1260 |
3.00 | Fine |
53.00 | 2.0866 |
4.00 | Fine |
52.00 | 2.0472 |
5.50 | Coarse |
50.50 | 1.9882 |
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Nom. Dia. (mm) | Pitch (mm) | Series |
Drill Size (65-75% thread) | Dec. Equiv. |
Drill Size | Dec. Equiv. | Drill Size | Dec. Equiv. |
Close Fit | Free Fit |
Screw Size |
Tapping Drills |
Clearance Drills |
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Updated: 8/12/11
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