AUTORIV ACS clinch stud

Clinch nuts and studs

ACS clinch stud / screw for conventional performance requirements and suitable for medium to thick sheet metal thicknesses.

Features:

Sheet thickness: From 1.5mm upwards without limitation

Thread: M5, M6, M8, M10, M12

Outer diameter: Medium

Workpiece material: Steel, aluminum, copper, magnesium

Pull through force: ++++

Torque:                    ++++

Push out force:       ++++

In use at car manufacturer OEMs in Germany, Europe and the USA

+ This clinch stud was purposely developed for automated feeding and processing.

Contents

  1. Application area
  2. Application examples
  3. Highlights
  4. Automation
  5. Customized configuration
  6. Performance

Application area

Suitable for: Insertion in metal sheets with tensile strength less than 600N/mm². It can be used in galvanized, painted metal sheets

Sheet thickness: Used for metal sheets with thicknesses from 1.5mm upwards without limitation

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)

Installation: Torque absorbers move and shape the material into the collar undercut

Used in: Sheet metal, aluminum profiles/ extruded profiles, aluminum casting, magnesium casting, hydroformed parts

ACS Clinch stud screw Press-In Fastener Cross Section Detail
Cross section - ACS clinch stud in sheet metal

Application examples

  • Lightweight construction
  • Electric and hybrid cars
  • Body-in-white, module carriers, battery trays, bumpers, crash boxes, doors, lids, engine hoods, axles, hinges, seats, safety systems, instrument panels, reinforcements, sun roofs, roof panels
  • Truck trailer manufacturing, heavy trucks, agricultural machines
  • HVAC heating, ventilation and air conditioning systems
  • Electronic components and devices
  • Elevators, escalators, conveyors
  • White goods

Highlights

+ Very low press-in forces

  • 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

+ Minor material movement during the press-in process

Lower risk of warping of workpieces, especially with many setting positions

+ Flat die

  • Lower risk of warping of work pieces
  • Flat sheet metal bottom with largest surface possible for the preload through tightening

+ Multi-purpose use without changing the geometry. Customized solutions for sheet thicknesses less than 2mm possible

ACS Clinch stud screw Press-In Fastener Detail banner

+ Simple mechanical compensation of positional tolerances possible (standard +/-0,5mm)

Greater compensation possible with custom design, possible with suitable AUTORIV thread end

  • 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

+ Small diameter

Setting in limited installation spaces is possible

Automation

The automations effectiveness and the quality of the end product are largely determined by fastener quality.
For optimal results, we perfectly match the fastener and the automation / tooling. This ensures high availability of the automation, high production output and high quality of the end product.

+ With us, the development of the automation technology comes together with the development of the fasteners

+ Each fastener is 100% vision inspected before it is shipped to you

Autoriv automation clinching fasteners assembly systems automation robot in-die tools

Customized configuration

We have a tailored solution for you. We are happy to make fastener adjustments for your specific application. A variety of parameters, related to the field of application, geometry, characteristics and surface of the fastener, are optimized according to your requirements.

+ Customized developments are one of our strengths! If your specific requirements cannot be met with a standard application, we will be happy to provide you with a suitable custom solution

+ Customized solutions that we develop for you, are verified for functionality

Within application testing, we simulate your production environment and test functional parameters and relevant characteristics of the fastener.

Thread: M5, M6, M8, M10, M12

Thread proof load: Thread proof load according to class 8.8, 9.8, 10.9 possible

Thread length: Thread length according to customer requirements

Thread end: Various thread ends according to standard, as well as MaThread

Thread tolerance: 6g, 6h

Thread coating as optional feature: Nycote, Precote

Surface protection: Various surface coatings possible, according to customer requirements

Further adjustments are possible on request.

Performance

Outer diameter - pull through force: Medium sized head diameter, also suitable for aluminum applications, good pull through force

Under-head serration - torque: Strong under-head ribs for high torque absorption

Collar - push out force: Collar with undercut to provide push out forces

ACS Clinch stud screw Press-In Fastener head geometry performance
Under-head geometry of the ACS clinch stud
ACS Einpressbolzen Einpresschraube Verbindungselement clinch stud fastener product data
ProductThread (d2)Head diameter in mm (d1)Head height in mm (l1)Collar height in mm (l3)Min. sheet thickness in mm (s)Polot hole diameter in mm (Ø -0,1)Thread length in mm (l2)
ACS clinch studM57.800.902.901.505.1515 / 20 / 25 / 30 / 35 / 40 / 50
ACS clinch studM69.401.002.901.506.1515 / 20 / 25 / 30 / 35 / 40 / 50
ACS clinch studM812.001.502.901.508.1515 / 20 / 25 / 30 / 35 / 40 / 50
ACS clinch studM1015.702.002.901.5010.1515 / 20 / 25 / 30 / 35 / 40 / 50

Tolerances according to ISO 2768-m.

Back to CP fasteners overview

ThreadMaterialSheet thickness (mm)Press-in force (kN)Push out force (kN)Torsional strength (Nm)
M5Aluminum1.513.00.805.4
M5Steel1.526.01.507.6
M6Aluminum1.529.01.2714
M6Steel1.533.01.7514
M8Aluminum2.335.61.7030
M8Steel2.344.52.2030
M10Aluminum2.340.02.4436
M10Steel2.354.03.4749

These values are for orientation only and are not binding.
Tests were conducted in steel H320 LA and aluminum EN AW-5754.

Possible assembly systems

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