ISO 4762:2004 Socket Head Cap Hex Socket Tapping Screw uses a cylindrical head, hex socket drive, and tapping thread. It is suitable for connections requiring compact head geometry, controlled torque application, and assembly without pre-tapping.
The hex socket allows force to be applied in limited spaces, while the regular cylindrical head is suitable for machinery housings, module frames, and precision equipment where appearance and installation stability are important. The tapping thread improves fastening efficiency in sheet metal or light material pilot holes.
This product can be used in automation equipment, electronic enclosures, instrument structures, light machinery, and industrial components. High-strength steel, stainless steel, or treated versions can be selected to meet load, corrosion resistance, and long-term maintenance requirements.

Dimensions unit: inch
|
Thread size d |
M1.6 |
M2 |
M2.5 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
||
|
P |
Pitch |
0.35 |
0.4 |
0.45 |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
|
|
dk |
Max. |
Smooth head |
3 |
3.8 |
4.5 |
5.5 |
7 |
8.5 |
10 |
13 |
16 |
18 |
|
Knurled head |
3.14 |
3.98 |
4.68 |
5.68 |
7.22 |
8.72 |
10.22 |
13.27 |
16.27 |
18.27 |
||
|
Min. |
2.86 |
3.62 |
4.32 |
5.32 |
6.78 |
8.28 |
9.78 |
12.73 |
15.73 |
17.73 |
||
|
da |
Max. |
2 |
2.6 |
3.1 |
3.6 |
4.7 |
5.7 |
6.8 |
9.2 |
11.2 |
13.7 |
|
|
ds |
Max. |
1.6 |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
|
|
Min. |
1.46 |
1.86 |
2.36 |
2.86 |
3.82 |
4.82 |
5.82 |
7.78 |
9.78 |
11.73 |
||
|
e |
Min. |
1.733 |
1.733 |
2.303 |
2.873 |
3.443 |
4.583 |
5.723 |
6.863 |
9.149 |
11.429 |
|
|
k |
Max. |
1.6 |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
|
|
Min. |
1.46 |
1.86 |
2.36 |
2.86 |
3.82 |
4.82 |
5.7 |
7.64 |
9.64 |
11.57 |
||
|
s |
Nominal |
1.5 |
1.5 |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
|
|
Max. |
1.58 |
1.58 |
2.08 |
2.58 |
3.08 |
4.095 |
5.14 |
6.14 |
8.175 |
10.175 |
||
|
Min. |
1.52 |
1.52 |
2.02 |
2.52 |
3.02 |
4.02 |
5.02 |
6.02 |
8.025 |
10.025 |
||
|
t |
Min. |
0.7 |
1 |
1.1 |
1.3 |
2 |
2.5 |
3 |
4 |
5 |
6 |
|
|
w |
Min. |
0.55 |
0.55 |
0.85 |
1.15 |
1.4 |
1.9 |
2.3 |
3.3 |
4 |
4.8 |
|
|
Thousand pieces of steel weigh ≈kg |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
||
|
Thread length b |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
||
|
Thread size d |
(M14) |
M16 |
M20 |
M24 |
M30 |
M36 |
M42 |
M48 |
M56 |
M64 |
||
|
P |
Pitch |
2 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
|
|
dk |
Max. |
Smooth head |
21 |
24 |
30 |
36 |
45 |
54 |
63 |
72 |
84 |
96 |
|
Knurled head |
21.33 |
24.33 |
30.33 |
36.39 |
45.39 |
54.46 |
63.46 |
72.46 |
84.54 |
96.54 |
||
|
Min. |
20.67 |
23.67 |
29.67 |
35.61 |
44.61 |
53.54 |
62.54 |
71.54 |
83.46 |
95.46 |
||
|
da |
Max. |
15.7 |
17.7 |
22.4 |
26.4 |
33.4 |
39.4 |
45.6 |
52.6 |
63 |
71 |
|
|
ds |
Max. |
14 |
16 |
20 |
24 |
30 |
36 |
42 |
48 |
56 |
64 |
|
|
Min. |
13.73 |
15.73 |
19.67 |
23.67 |
29.67 |
35.61 |
41.61 |
47.61 |
55.54 |
63.54 |
||
|
e |
Min. |
13.716 |
15.996 |
19.437 |
21.734 |
25.154 |
30.854 |
36.571 |
41.131 |
46.831 |
52.531 |
|
|
k |
Max. |
14 |
16 |
20 |
24 |
30 |
36 |
42 |
48 |
56 |
64 |
|
|
Min. |
13.57 |
15.57 |
19.48 |
23.48 |
29.48 |
35.38 |
41.38 |
47.38 |
55.26 |
63.26 |
||
|
s |
Nominal |
12 |
14 |
17 |
19 |
22 |
27 |
32 |
36 |
41 |
46 |
|
|
Max. |
12.212 |
14.212 |
17.23 |
19.275 |
22.275 |
27.275 |
32.33 |
36.33 |
41.33 |
46.33 |
||
|
Min. |
12.032 |
14.032 |
17.05 |
19.065 |
22.065 |
27.065 |
32.08 |
36.08 |
41.08 |
46.08 |
||
|
t |
Min. |
7 |
8 |
10 |
12 |
15.5 |
19 |
24 |
28 |
34 |
38 |
|
|
w |
Min. |
5.8 |
6.8 |
8.6 |
10.4 |
13.1 |
15.3 |
16.3 |
17.5 |
19 |
22 |
|
|
Thousand pieces of steel weigh ≈kg |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
||
|
Thread length b |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
||
ABOUT US
Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010.
The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.
With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.
Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery
NEWS