Pierce and Clinch Nuts

The cost-optimised alternative to weld nuts.

Manufacturers such as Daimler, BMW, General Motors, and Ford are faced with ever more demanding technical requirements.
One way of dealing with this is to use innovative joining technology.
In this context, PIAS® und RIVTEX® - pierce clinch nuts are more resistant to corrosion and more process-reliable than conventional welded nuts.

With PIAS® pierce-clinch nuts (square) and RIVTEX® (ROUND) a non-detachable metal fastening can be created at optimum cost. The pierce-clinching technology is suitable for steel and aluminium sheets, causes very little cost for inspection and control, and allows several pierce-clinch screws to be processed in a single stroke.

PIAS® and RIVTEX® pierce-clinch nuts offer the following advantages over welded nuts:

  • corrosion-resistant
  • no weld spatter on the thread
  • no thermal weakening at the fastening position
  • self-piercing
  • higher torque requirements
  • high process reliability in fully-automated processing
  • flush-mounted processing
  • processing can be manual, semi or fully automated
  • self-locking thread possible

RIVTEX® Simulation

How are pierce-clinch nuts processed?