| Thread specifications |
ST2.9 |
ST3.5 |
ST4.2 |
ST4.8 |
ST5.5 |
ST6.3 |
| P |
Pitch |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
1.8 |
| a |
Max |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
1.8 |
| dc |
Max |
6.3 |
8.3 |
8.8 |
10.5 |
11 |
13.5 |
| Min |
5.8 |
7.6 |
8.1 |
9.8 |
10 |
12.2 |
| c |
Min |
0.4 |
0.6 |
0.8 |
0.9 |
1 |
1 |
| s |
Maximum = nominal |
4 |
5.5 |
7 |
8 |
8 |
10 |
| Min |
3.82 |
5.32 |
6.78 |
7.78 |
7.78 |
9.78 |
| e |
Min |
4.28 |
5.96 |
7.59 |
8.71 |
8.71 |
10.95 |
| k |
Maximum = nominal |
2.8 |
3.4 |
4.1 |
4.3 |
5.4 |
5.9 |
| Min |
2.5 |
3 |
3.6 |
3.8 |
4.8 |
5.3 |
| kw |
Min |
1.3 |
1.5 |
1.8 |
2.2 |
2.7 |
3.1 |
| r |
Min |
0.1 |
0.1 |
0.2 |
0.2 |
0.25 |
0.25 |
| Drilling depth or sheet metal thickness |
Min |
0.7 |
0.7 |
1.75 |
1.75 |
1.75 |
2 |
| Max |
1.9 |
2.25 |
3 |
4.4 |
5.25 |
6 |
| LG (minimum) |
- |
- |
- |
- |
- |
|
Hexagonal drill screws are commonly used in places where mechanical fixing is required, such as carpentry, metalworking, and construction work. Their hexagonal head design makes them easier to secure with torque tools, such as a wrench or torque wrench, and less likely to break than other head designs. This type of screw can be used where it is necessary to ensure a firm fixation and where frequent tightening and loosening is required.
Its Function
✓
Fixation of Thin Plate Materials for Simple Buildings
✓
Building structure reinforcement and support
✓
Building Decoration Fixation
✓
Mechanical equipment fixation
✓
Automotive component assembly
✓
Installation in the construction industry
Frequently Asked Questions
What are the main applications for hexagonal drill screws?
They are primarily used in carpentry, metalworking, and construction where mechanical fixing is required, including thin plate fixation and mechanical equipment assembly.
Why is the hexagonal head design advantageous?
The hexagonal head provides a better grip for torque tools like wrenches, allowing for higher tightening force with a lower risk of head breakage compared to other designs.
Are these screws suitable for automotive use?
Yes, these screws are commonly utilized for automotive component assembly and other industrial mechanical fixing applications.
What materials can these screws be used with?
They are highly effective for securing thin plate materials, building structures, and decorative elements in both simple buildings and complex construction projects.
Can these screws be reused?
While designed for firm fixation, their durable hexagonal head allows for frequent tightening and loosening without compromising the structural integrity of the head easily.
Do I need to pre-drill holes for these screws?
As self-drilling screws, they are designed to drill their own holes in specific thicknesses of metal or wood, though the maximum drilling depth depends on the screw size as shown in the specification table.
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