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< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >
Metal sheet preparation according to stud
Hole diameter
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M 2 |
M 2.5 |
M 3 |
M 3.5 |
M 4 |
M 5 |
M 6 |
M 8 |
M 10 |
| F, R, T, H or L type: |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
5.0 |
6.0 |
8.0 |
10.0 |
| I type: |
4.35 |
4.35 |
4.35 |
7.35 |
7.35 |
7.9 |
- |
- |
- |
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Ø 2 |
Ø 2.5 |
Ø 3 |
Ø 3.5 |
Ø 4 |
Ø 5 |
Ø 6 |
Ø 8 |
Ø 10 |
| P type: |
- |
- |
3.5 |
- |
4.5 |
5.5 |
6.5 |
- |
- |
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dimensions: mm (tolerance provided in the data sheets) |
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Preparation Process |
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- Punching
- Drilling
- Laser cutting
- Water jet cutting |
 Strain-hardened zone
 Cutting zone
 Rupture zone
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These four processes can be used to create the hole destined to receive the STUDFIX™. Quality of preparation is, however, of overriding importance in guaranteeing optimal crimping which will result in high mechanical resistance.
Use of a precision-sharpened punch is, for example, recommended - in order to limit strain-hardening of the hole and minimize the rupture zone. |
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To mount I type concealed head studs, it is necessary to carry out spot facing, in compliance with the characteristics for diameter (see top of page) and depth (‘P’: see data sheets).
The minimum thickness of the metal sheet is 1.5 mm or 2.5 mm, depending on the height of the shank (short or long). |
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< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >
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Preparation of the workpiece to be assembled
Ø T2 hole diameter according to head type
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| Ø M |
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M 2 |
M 2.5 |
M 3 |
M 3.5 |
M 4 |
M 5 |
M 6 |
M 8 |
M 10 |
| Ø T2 type F, T, I |
min |
2.1 |
2.6 |
3.1 |
3.6 |
4.1 |
5.1 |
6.1 |
8.1 |
10.1 |
| max |
2.7 |
3.3 |
3.8 |
4.4 |
5.0 |
5.8 |
7.1 |
8.8 |
11.0 |
| Ø T2 type R |
min |
2.1 |
2.6 |
3.1 |
3.6 |
4.1 |
5.1 |
- |
- |
- |
| max |
2.4 |
2.8 |
3.3 |
3.9 |
4.3 |
5.5 |
- |
- |
- |
| Ø T2 type H, L |
min |
- |
- |
- |
- |
4.1 |
5.1 |
6.1 |
8.1 |
10.1 |
| max |
- |
- |
- |
- |
5.3 |
6.4 |
7.7 |
10.3 |
12.9 |
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< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >
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< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >
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STUDFIX™ installation process |
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STUDFIX™ fitting orientation
To guarantee optimal installation and resistance of STUDFIX™, it is recommended to always crimp the nuts from the side:
- of the punch entry (hole created by punching);
- of the burr (hole created by drilling);
- of the source (laser or water jet cutting), especially for significant thicknesses.
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Stroke adjustment
Stroke adjustment should allow the complete insertion of the head into the workpiece (for the flush head studs) or the bosses and groove (for non-flush components).
Depending on the grade and thickness of the workpiece material, it may be wise to respect a time delay at the stroke end in order to maintain pressure on the component. Taking this precaution will guarantee the flow of the material into the groove.
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< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >
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< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >
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Download STUDFIX™ Technical Data pdf
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