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Technical data / Installation

< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >

Metal sheet preparation according to stud

Hole diameter

  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 - - -
  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 - -

dimensions: mm (tolerance provided in the data sheets)

Preparation Process

STUDFIX Preparation Process

- Punching
- Drilling
- Laser cutting
- Water jet cutting

STUDFIX Zone Écrouie Strain-hardened zone
STUDFIX Zone de Découpe Cutting zone
STUDFIX Zone d'arrachement Rupture zone

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.

STUDFIX Concealed Head Hole

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).

< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >

Preparation of the workpiece to be assembled

Ø T2 hole diameter according to head type

STUDFIX T2 Diameter

Ø M   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

< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >

Recommendation on the location of holes

In order to guarantee optimal crimping, and to avoid any deformation of the sheet liable to adversely affect the STUDFIX™ bond, compliance is recommended with the distances (shown in the table below) between:
- two punched holes (Dt)
- the edge of the sheet and the punching axis (Db)
- the punching axis and the start of the bend radius (Dp)

STUDFIX Location of Holes
F or T type
Ø M M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6 M 8 F type T type
Ø T 2 2.5 3 3.5 4 5 6 8 STUDFIX Type F
Ep min = 1 mm
STUDFIX Type T
Ep min = 0.5 mm
Dt 7.2 7.9 8.1 9.6 10.9 12.3 14.2 17.6
Db 5.2 5.4 5.6 6.4 6.9 7.3 8.2 9.6
Dp (ep = 3 mm) 3.5 3.5 3.5 4.1 4.75 5.25 5.75 7
Dp (3 < ep < 6 mm) - - - - 6.5 7 7.5 8.7
dimensions: mm
R type
Ø M M 2 M 2.5 M 3 M 3.5 M 4 M 5 R type
Ø T 2 2.5 3 3.5 4 5 STUDFIX Type R
Ep min = 1 mm
Dt 4.6 5.3 6.3 7.3 8.2 10.6
Db 2 2.8 3.3 3.8 4.2 5.6
Dp (ep = 3 mm) 3.5 3.5 3.5 4.1 4.75 5.25
Dp (3 < ep < 6 mm) - - - - 6.5 7
dimensions: mm
H or L type
Ø M M 4 M 5 M 6 M 8 M 10 H type L type
Ø T 4 5 6 8 10 STUDFIX Type H
Ep min = 1.2 mm
STUDFIX Type L
Ep min = 1 mm
Dt 13.5 15.7 17.5 20.7 23.7
Db 9.5 10.7 11.5 12.7 13.7
Dp (ep = 3 mm) 4.75 5.25 5.75 7 8.25
Dp (3 < ep < 6 mm) 6.5 7 7.5 8.7 10
dimensions: mm

Because the values depend on the grade of the workpiece material, they are given as guidelines only. For applications requiring installation beyond the values recommended above, LA CLUSIENNE-CLUFIX offers custom-made products.

< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >

STUDFIX™ installation process

STUDFIX Installation Process

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.

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.

< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >

Setting force F (in daN)

Threaded F type

STUDFIX™ material Metal sheet material   M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6 M 8 Threaded F type
Steel Steel min
max
1100
1500
1100
1500
1200
1800
1700
2400
2500
2900
2900
3500
4000
4700
4300
5100
STUDFIX Type F
Ep min = 1 mm
Stainless Steel Stainless Steel min
max
1300
1800
1300
1800
1500
2100
2000
2700
2900
3300
3300
3900
4500
5200
4800
5600
HR Stainless steel Strain-hardened Stainless Steel min
max
- - 3500
4200
- 4400
5300
4650
5550
6500
7500
-
- Aluminium min
max
650
900
650
900
700
1100
1000
1450
1500
1750
1750
2100
2400
2850
2550
3100
R type
STUDFIX™ material Metal sheet material   M 2 M 2.5 M 3 M 3.5 M 4 M 5 R type
Steel Steel min
max
400
800
500
900
600
1000
750
1100
900
1250
1250
2100
STUDFIX Type R
Ep min = 1 mm
Stainless Steel Stainless Steel min
max
600
1000
700
1100
800
1200
950
1300
1100
1500
1500
2400
- Aluminium min
max
- 300
550
350
600
- 550
750
750
1250
T type
STUDFIX™ material Metal sheet material   M 2 M 2.5 M 3 M 3.5 M 4 M 5 T type
Steel Steel min
max
- - 1200
1800
- 2500
2900
2900
3500
STUDFIX Type T
Ep min = 0.5 mm
Stainless Steel Stainless Steel min
max
- - 1500
2100
- 2900
3300
3300
3900
- Aluminium min
max
- - 700
1100
- 1500
1750
1750
2100
H type
STUDFIX™ material Metal sheet material   M 5 M 6 M 8 M 10 M 12 M 14 M 16 H type
Steel Steel min
max
2100
2800
2800
3900
3900
4800
4500
5600
5300
6600
6250
7900
7800
10000
STUDFIX Type H
Ep min = 1.2 mm
Stainless Steel Stainless Steel min
max
2500
3300
3300
4500
4500
5400
5000
6200
5900
7300
7000
8750
8600
11000
- Aluminium min
max
1250
1700
1700
2350
2350
2900
2700
3400
3200
4000
3750
4750
4700
6000
L type
STUDFIX™ material Metal sheet material   M 4 M 5 M 6 M 8 L type
Steel Steel min
max
- 3900
4950
4900
6150
5850
7350
STUDFIX Type L
Ep min = 1 mm
- Aluminium min
max
- 2350
3000
2900
3700
3500
4400
I type
STUDFIX™ material Metal sheet material   M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6 I type
Steel Steel min
max
- 1000
1350
1000
1350
- 1700
2600
1750
2900
- STUDFIX Type I
Ep min = 1.5 mm
ou = 2.5 mm
Stainless Steel Stainless Steel min
max
- 1000
1350
1000
1350
- 1700
2600
1750
2900
-
HR Stainless steel Strain-hardened Stainless Steel min
max
- 2000
3300
2000
3300
- 3300
5100
3500
5250
-
Aluminium Aluminium min
max
- 600
900
600
900
- 1000
1700
1050
1950
-
F type unthreaded and P type
STUDFIX™ material Metal sheet material   Ø 3 Ø 4 Ø 5 Ø 6 F type unthreaded P type
Steel Steel min
max
1400
2100
2800
3250
3200
3850
4350
5100
STUDFIX Type F Lisse
Ep min = 1 mm
STUDFIX Type P
Ep min = 1 mm
Stainless Steel Stainless Steel min
max
1750
2450
3250
3700
3650
4300
4850
5650
- Aluminium min
max
800
1250
1650
1950
1950
2300
2600
3100

These values are given as guidelines only, and the wide range of setting forces reflects the variation of mechanical characteristics among sheet metals (depending on the grade of the steel, stainless steel and aluminium) and by the dimensional precision of the hole.

< Metal sheet preparation - Workpiece preparation - Recommendation - Installation - Setting - Tooling >

STUDFIX™ specific installation tools

F type
Ø M Anvil Dimensions M2 ? M5 : Ep = 1.5 mm
M6 ? M8 : Ep = 2.3 mm
M2 ? M5 : Ep > 1.5 mm
M6 ? M8 : Ep > 2.3 mm
E1 E2 + 0.1 / - 0
M 2 2.1 2.6 STUDFIX Type F Outillage STUDFIX Type F Outillage
M 2.5 2.6 3.1
M 3 3.1 3.6
M 3.5 3.6 4.1
M 4 4.1 4.6
M 5 5.1 5.6
M 6 6.1 6.6
M 8 8.1 8.6
dimensions : mm. Dimensions available in the data sheets
F type - HR Stainless Steel
Ø M Anvil Dimensions Stainless steel support for F type HR stainless steel stud and extremely hard workpieces
E1 E2 ± 0.05 E3 ± 0.05 h ± 0.25
M 3 3.1 3.8 4.6 0.25 STUDFIX Type F HR Outillage
M 4 4.1 5.0 5.8 0.25
M 5 5.1 6.1 7.2 0.25
M 6 6.1 7.9 8.8 0.5
dimensions : mm. Dimensions available in the data sheets
R type
Ø M Anvil Dimensions Ep = 1.5 mm Ep > 1.5 mm
E1 E2 + 0.1 / - 0
M 2.5 2.6 3.1 STUDFIX Type R Outillage STUDFIX Type R Outillage
M 3 3.1 3.6
M 4 4.1 4.6
M 5 5.1 5.6
dimensions : mm. Dimensions available in the data sheets
T type
Ø M Anvil Dimensions Ep = 0.8 mm Ep > 0.8 mm
E1 E2 + 0.1 / - 0
M 3 3.1 3.6 STUDFIX Type T Outillage STUDFIX Type T Outillage
M 4 4.1 4.6
M 5 5.1 5.6
dimensions : mm. Dimensions available in the data sheets
H type
Ø M Anvil Dimensions Ep = 2.3 mm Ep > 2.3 mm
E1 E2 + 0.1 h + 0.1 / - 0
M 5 5.1 5.6 0.9 STUDFIX Type H Outillage STUDFIX Type H Outillage
M 6 6.1 6.6 1.1
M 8 8.1 8.6 1.6
M 10 10.1 10.6 2.1
M 12 12.1 12.9 2.5
M 14 14.1 15.1 3.0
M 16 16.1 17.1 3.5
dimensions : mm. Dimensions available in the data sheets
L type
Ø M Anvil Dimensions Ep = 1.5 mm Ep > 1.5 mm
E1 E2 + 0.1 h + 0.1 / - 0
M 5 5.1 5.6 1.0 STUDFIX Type L Outillage STUDFIX Type L Outillage
M 6 6.1 6.6 1.4
M 8 8.1 8.6 2.0
dimensions : mm. Dimensions available in the data sheets
P type
Ø M Anvil Dimensions Ep = 1.7 mm Ep > 1.7 mm
E1 E2 + 0.1 / - 0
Ø 3 3.1 3.9 STUDFIX Type P Outillage STUDFIX Type P Outillage
Ø 4 4.1 4.9
Ø 5 5.1 5.9
Ø 6 6.1 6.9
dimensions : mm. Dimensions available in the data sheets
F type unthreaded
Ø M Anvil Dimensions Ep = 1.7 mm Ep > 1.7 mm
E1 E2 + 0.1 / - 0
Ø 3 3.6 4.1 STUDFIX Type F Lisse Outillage STUDFIX Type F Lisse Outillage
Ø 4 4.1 4.6
Ø 5 5.6 6.1
Ø 6 6.1 6.6
dimensions : mm. Dimensions available in the data sheets

Download STUDFIX™ Technical Data pdf

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