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Technical data / Installation

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

Metal sheet preparation

Hole diameter

Cylindrical, hexagonal and thin heads:

Hole Ø 4.2 5.4 7.1 8.75
Threaded (Ø M) M 2 / M 2.5 / M 3 M 2.5 G / M 3 G / M 3.5 M 4 / M 5 M 6
Bearing (Ø int) 3.1 3.1 / 3.6 3.6 / 4.1 / 5.1  
Snap-on   ?    
Lockable   ?    

dimensions: mm (tolerance provided in the data sheets)

Concealed heads:
To install concealed head standoffs, it is necessary to carry out spot facing in compliance with the characteristics for diameter and depth given below.
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).

SPACERFIX Tête Invisible Trou
Threaded M M 2.5 M 3 M 4 M 5 M 6
Ø of spot facing   5.4 5.4 7.9 8.75 9.9
Depth P Short 1.1 1.1 1.1 1.1 1.1
Long 1.9 1.9 1.9 1.9 1.9

dimensions: mm (tolerance provided in the data sheets)

Preparation process

SPACERFIX Preparation Process

- Punching
- Drilling
- Laser cutting
- Water jet cutting

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

These four processes can be used to create the hole destined to receive the SPACERFIX™. Quality of preparation is, however, of overriding importance in guaranteeing optimal clinching 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.

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

Preparation of the workpiece to be assembled

Ø T2 Hole diameter

SPACERFIX Ø T2

Ø M M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6 M 8 M 10
Ø T2 min 2.1 2.6 3.1 3.6 4.1 5.1 6.1 8.1 10.1
Ø T2 max 3.1 3.35 3.6 4.45 5.55 6.05 7.37 9.25 12

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

Recommendation on the location of holes

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

SPACERFIX Location of Holes
Threaded : Ø M M 2 M 2.5 M 2.5 G M 3 M 3 G M 3.5 M 4 M 5 M 6
Bearing : Ø int       3.1 3.1 3.6 3.6 / 4.1 5.1  
Snap-on - Lockable           ?      
Ø T 4.2 4.2 5.4 4.2 5.4 5.4 7.1 7.1 8.75
Dt 8.8 8.8 10.5 8.8 10.5 10.5 12.5 12.5 15.2
Db 5.2 5.2 5.8 5.2 5.8 5.8 7.0 7.0 7.6
Dp (ep = 3 mm) 5.5 5.5 6.0 5.5 6.0 6.0 7.1 7.1 7.7
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 >

SPACERFIX™ installation process

SPACERFIX™ Installation Process

SPACERFIX™ fitting orientation

To guarantee optimal installation and resistance of SPACERFIX™, you are 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 thick workpieces.

Installation stroke

Setting of the bottom of the press stroke position must be precise, so as to ensure insertion of the head in the metal sheet.
Depending on the grade and thickness of the metal sheet, it may be wise to respect a time delay at the stroke end in order to maintain pressure on the component so as to eliminate any springback.

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

Setting forces F (in daN)

Force for hexagonal head:

SPACERFIX™ material Metal sheet material   M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6
Ø 4.2 Ø 5.4 Ø 4.2 Ø 5.4
Steel Steel min
max
1000
1400
1000
1400
1200
1800
1000
1400
1200
1800
1200
1800
1600
2800
1600
2800
2050
3350
Stainless Steel or 316L Stainless Steel min
max
1000
1400
1000
1400
1200
1800
1000
1400
1200
1800
1200
1800
1600
2800
1600
2800
2050
3350
HR Stainless steel Strain-hardened Stainless Steel min
max
- 2500
3500
3000
4500
2500
3500
3000
4500
3000
4500
3500
5300
3500
5300
4000
6200
Aluminium Aluminium min
max
- 600
850
700
1100
600
850
700
1100
700
1100
1000
1650
1000
1650
1200
2000
Force for bearing body shape:
SPACERFIX™ material Metal sheet material   Ø int. 3.1 Ø int. 3.6 Ø int. 4.1 Ø int. 5.1
Ø 4.2 Ø 5.4 Ø 4.2 Ø 5.4
Steel Steel min
max
1000
1400
1200
1800
1200
1800
1600
2800
1600
2800
1600
2800
Stainless Steel or 316L Stainless Steel min
max
1000
1400
1200
1800
1200
1800
1600
2800
1600
2800
1600
2800
HR Stainless steel Strain-hardened Stainless Steel min
max
2500
3500
3000
4500
3000
4500
3500
5300
3500
5300
3500
5300
Aluminium Aluminium min
max
600
850
700
1100
700
1100
1000
1650
1000
1650
1000
1650
Force for concealed heads:
SPACERFIX™ material Metal sheet material   M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6
Steel Steel min
max
- 1200
2000
1450
2400
- 1700
2800
1800
3100
1950
3500
Stainless Steel or 316L Stainless Steel min
max
- 1200
2000
1450
2400
- 1700
2800
1800
3100
1950
3500
HR Stainless steel Strain-hardened Stainless Steel min
max
- 2600
4300
3100
5100
- 4000
5550
4300
6000
4750
6700
Aluminium Aluminium min
max
- 700
1200
850
1450
- 1000
1700
1100
1900
1200
2100
Force for snap-on or lockable body shape:
SPACERFIX™ material Metal sheet material   Ø 5.4
Steel Steel min
max
1200
1800
Stainless Steel or 316L Stainless Steel min
max
1200
1800
HR Stainless steel Strain-hardened Stainless Steel min
max
3000
4500
Aluminium Aluminium min
max
700
1100

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

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

Tooling suitable for all head shapes except concealed for clinching on thin workpieces

For metal sheet thicknesses that are equal to or below 8/10ths mm, use of a die with chamfer is recommended (see diagram below) so that the material can flow towards the groove and thus ensure SPACERFIX™ resistance. The dimensions for this chamfer are provided in the SPACERFIX™ data sheets.
This tooling also enables complete burial of the SPACERFIX™ head in the metal sheet for thicknesses up to 12/10ths.

SPACERFIX Die

Ø M C
= M3 0.4
M4 ? M5 0.6
> M5 0.8
SPACERFIX Tooling

Specific tooling for concealed heads

To enable crimping of this type of standoff, the punch to be used must include a bore receiving the body of the standoff. The dimension of this bore matches the diameter of the standoff body + 0.2 mm.

SPACERFIX Concealed Tooling

Download SPACERFIX™ Technical Data pdf

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