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PIAS® HN
The power nut for the most demanding requirements

The PIAS® HN self-piercing insert nut was developed specifically for thicker sheet metal. In this area of application, it achieves very high torque and pull-out values, which are crucial for structurally resilient connections.

The self-piercing process makes the maximum possible material volume available, which is displaced into the locking contour during the setting process. This optimal material displacement ensures a particularly form-fitting lock and thus enables excellent performance values in aluminum. The PIAS® HN self-piercing nut is a self-piercing fastening solution designed for sheet thicknesses from 0.80 in to 1.57 in. It is suitable for steel sheets with a sheet strength of 250 MPa to 600 MPa.

High level of 
process reliability

Self-
piercing

Cutting 
costs

PIAS® HN

Thanks to its special geometry and self-punching process, the PIAS® HN achieves very high extrusion and torque values in steel sheets, which are often required in this thickness range in particular. It thus offers a reliable and high-performance fastening technology for demanding applications.

PIAS® HN
For sheet thicknesses 
greater than 2.0 mm

The market’s demands

  • Cutting assembly time and assembly costs 
  • Weight saving with multi-material mix 
  • High fastening property requirements 
  • Flexibility in processing and application fields 
  • The processing technology and the fastener, both from a single supplier 
  • Global support

ARNOLD provides the solution

PIAS® HN
The round self-punching clinch nut

Rivtex® RXM

Technical advantages of PIAS® HN

  • Self piercing, no need to pre-drill a hole, detachable fastening 
  • No heating effect / surface damage 
  • No weld spatter on the thread 
  • Very good press-out forces and overturn torques 
  • No additional energy requirement
  • Steel and aluminum sheet metal from 250 – 600 MPa, 2.0 – 4.0 mm
  • Various strength classes, dimensions and coating systems 
  • Repair solutions and process reliability
  • Can be applied in various materials

Commercial advantages of PIAS® HN

  • Flexible processing technology 
  • Short cycle time < 3s, thereby low inspection and control costs 
  • Reduces energy and assembly costs 
  • Lower process costs thanks to self-contained solution

Animation
How are pierce-clinch nuts processed?

PIAS® HN
for higher torque requirements

Function 01

01

 

Function 02

02

 

Function 03

03

 

Function 04

04

 

Everything you need.

Application-related and near-series testing
 

Find out more

Calculations and simulations for technical evaluation and optimization 

Find out more

  • Brochure PIAS®

    Pierce-clinch nuts for higher torque requirements
    PDF –     826 KB
    • Download

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