ASN clinch nut
for automated feeding and processing
Inexpensive clinch nut for conventional performance requirements. It is used for a wide variety of clamping ranges and materials. Used by vehicle manufacturers (OEM) in Germany, Europe and the USA, widely used at Tier 1 level.
Sheet thickness - From 2mm, adaptable to sheets from 1mm
Thread size - M5, M6, M8, M10, M12, M14, M16, M18, M20
Workpiece material - Steel, aluminum, copper, magnesium
Outer diameter - Small
Pull-through force - Medium
Torque - Very high
Push-out force - High
| Thread (d3) | Outer diameter in mm (d1) | Collar diameter (d2) | Height (l1) | Max. Collar height (l2) | Pilot hole diameter in mm (Ø -0.1) | Min. sheet thickness in mm (s) |
|---|---|---|---|---|---|---|
| M5 | 8.70 | 6.38 | 2.00 | 0.97 | 6.53 | 1.00 |
| M6 | 11.05 | 8.72 | 4.08 | 0.97 | 8.87 | 1.00 |
| M8 | 12.65 | 10.47 | 5.47 | 0.97 | 10.62 | 1.00 |
| M10 | 16.50 | 12.67 | 7.90 | 0.97 | 12.82 | 1.00 |
| Thread | material | Sheet thickness (mm) | Push-out force (kN) | Torsional strength (Nm) |
|---|---|---|---|---|
| M5 | steel | 1.0 | 0.53 | 3.60 |
| M5 | steel | 1.5 | 0.80 | 4.50 |
| M5 | steel | 2.0 | 1.11 | 6.80 |
| M5 | aluminum | 1.0 | 0.30 | 3.00 |
| M5 | aluminum | 1.5 | 0.48 | 3.60 |
| M5 | aluminum | 2.0 | 0.85 | 5.70 |
| M6 | steel | 1.0 | 1.38 | 13.00 |
| M6 | steel | 1.5 | 1.76 | 17.00 |
| M6 | steel | 2.0 | 1.76 | 17.00 |
| M6 | aluminum | 1,0 | 0.97 | 7.90 |
| M6 | aluminum | 1.5 | 1.58 | 10.20 |
| M6 | aluminum | 2.0 | 1.58 | 14.10 |
| M8 | steel | 1.5 | 1.87 | 18.70 |
| M8 | steel | 2.0 | 1.87 | 20.30 |
| M8 | aluminum | 1.5 | 1.57 | 13.60 |
| M8 | aluminum | 2.0 | 1.57 | 18.10 |
| M10 | steel | 2.02 | 21.50 | |
| M10 | aluminum | 1.76 | 27.10 |
The values are for guidance only and are not binding.
Tests were carried out in steel H320 LA and aluminum EN AW-5754.
| Thread proof load | Pitch x thread | Thread tolerance | Thread coating as an option | Surface finish | PVT as an option |
|---|---|---|---|---|---|
| according to class 10 | 0.8 x d | 6G, 6H | Nycote, Precote | Various surface coatings possible | Yes |
General Information
The clinch nut, often also referred to as a self-clinching nut or press-fit nut, is a fastener that is pressed into thin-walled sheet metal to provide a thread for fastening screws.
The clinch nut is inserted into a prefabricated pilot hole in the component by deforming the sheet metal using cold forming. It is often used when conventional joining methods such as screw joining or welding are not suitable.
The ideal replacement for weld nuts is our STN self-piercing clinch nut.
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Application and function
Suitable for: Sheet metal with a tensile strength of less than 600N/mm²; can be used in galvanized, painted sheet metal
Sheet metal bottom: Flat without indentation, optimal fastening characteristics (clamping with a large surface area)
Pilot hole preparation: Pre-punched pilot hole according to AUTORIV specifications
Die: Use of a flat die (optimal downtimes)
Functionality: Torque absorbers move and shape the material into the collar undercut
Outer diameter - pull through force: Small outer diameter as standard for use in limited installation space. Outer diameter can be configured for specific application
Under-head serration - torque: Under-head knurls for high torque absorption
Collar - push out force: Collar with undercut to provide push out forces
Highlights
- Lighter C-frame on the robot
- Larger projections / overhangs possible
- Shorter cycle times
- Pressing into undercuts or profiles is easier to handle than with other fasteners
Lower risk of warping of workpieces, especially with many setting positions
- Lower risk of warping of work pieces
- Flat sheet metal bottom with largest surface possible for the preload through tightening
- No diversity, less stock requirement
- No risk of mix-up (Incorrect fasteners in incorrect application)
- (Re-)use of existing automation / tooling, thus reduction of investment
Greater compensation possible with custom design
- Ensuring optimal pressing: No "NOK pressings" with risk of subsequent complaints and quality costs
- No frequent re-teaching of the robot necessary
- Ensuring high availability and output, thus cost reduction
Setting in limited installation spaces is possible
