All dimensions are in millimetres.
Socket Cap Screw Dimensions
| Nominal |
Thread. |
Hex Socket Size |
Body diameter and Head
height |
Head Dia |
Soc. length |
| Size |
Pitch |
|
Max |
Min |
Max |
Min |
|
|
|
J |
D /H |
A |
K |
| M3 |
0.5 |
2.50 |
3.00 |
2.86 |
5.50 |
5.20 |
1.3 |
| M4 |
0.70 |
3.00 |
4.00 |
3.82 |
7.00 |
6.64 |
2.00 |
| M5 |
0.8 |
4.00 |
5.00 |
4.82 |
8.50 |
8.14 |
2.70 |
| M6 |
1.0 |
5.00 |
6.00 |
5.82 |
10.00 |
9.64 |
3.30 |
| M8 |
1.25 |
6.00 |
8.00 |
7.78 |
13.00 |
12.57 |
4.3 |
| M10 |
1.5 |
8.00 |
10.00 |
9.78 |
16.00 |
15.57 |
5.50 |
| M12 |
1.75 |
10.00 |
12.00 |
11.73 |
18.00 |
17.57 |
6.60 |
| M16 |
2.0 |
14.00 |
16.00 |
15.73 |
24.00 |
23.48 |
8.80 |
| M20 |
2.5 |
17.00 |
20.00 |
19.67 |
30.00 |
29.48 |
10.70 |
| M24 |
3.0 |
19.00 |
24.00 |
23.67 |
36.00 |
35.38 |
12.90 |
Countersunk Screw Dimensions
| Nominal size |
Body Dia |
Thread Pitch |
Hex Socket Size |
Max Cone Dia |
Head Dia |
Head Height |
Soc. length |
|
D(max) |
D(min) |
|
J |
A1 |
A_max |
A_Min |
H |
K |
| M3 |
3.00 |
2.86 |
0.5 |
2.0 |
6.72 |
6.00 |
5.82 |
1.86 |
1.05 |
| M4 |
4.00 |
3.82 |
0.70 |
2.5 |
8.96 |
8.00 |
7.78 |
2.48 |
1.49 |
| M5 |
5.00 |
4.82 |
0.8 |
3.0 |
11,2 |
10.00 |
9.78 |
3.1 |
1.86 |
| M6 |
6.00 |
5.82 |
1.0 |
4.0 |
13.44 |
12.00 |
11.75 |
3.72 |
2.16 |
| M8 |
8.00 |
7.78 |
1.25 |
5.0 |
17.92 |
16.00 |
15.73 |
4.96 |
2.85 |
| M10 |
10.00 |
9.78 |
1.5 |
6.0 |
22.4 |
20.00 |
19.67 |
6.2 |
3.60 |
| M12 |
12.00 |
11.73 |
1.75 |
8.0 |
26.88 |
24.00 |
23.67 |
7.44 |
4.35 |
| M16 |
16.00 |
15.73 |
2.0 |
10.0 |
33.6 |
32.00 |
29.67 |
8.8 |
4.89 |
| M20 |
20.00 |
19.67 |
2.5 |
10.0 |
40.32 |
40.00 |
35.61 |
10.16 |
5.49 |
Also note provided for information only, information has not been checked by an independent source, therefore if you use this information you do so at your risk.
