Round press-in nut for single-stage processing

Thread sizes: M6 to M8

Application area

  • These press-in pierce nuts can be universally used for component thicknesses from 0.6 to 2.0 mm and tensile strengths of up to 800 MPa
  • Suitable for extremely high dynamic and static axial and shear loads
  • Can be used for aluminium or other materials
  • Suitable for use with surface-treated, galvanised or painted components
  • High resistance to twist and ejection forces for thin sheet metals

Technical characteristics

  • Thread sizes: M5 to M10
  • FK 8 (standard)
  • Self-piercing, single-stage placement (no hole preparation required)
  • Resistance to corrosion in accordance with the customerĀ“s requirements
  • No adverse effects on the joint or function of the thread; no damage due to weld spatters
  • High resistance to twist and ejection forces, even for thin sheet metals
  • Water-tight in reference to the requirements demanded by the automotive sector and dependent on the quality of the component material
  • Nut positioning tolerance ranges can be halved as compared to welding methods
  • Straightforward, in-process and non-destructive quality testing possible by worker instead of elaborate destructive tests

Your contact

Telephone: 49 (0)6175 799-0

Processing steps

  • Position component above die
  • A hole is punched for the nut by means of axial motion and with the aid of a preceding hole punch
  • The specific geometry of the die is used to form from the component material the area around the inside of the nut so as to result in a form-fitting and friction-locking connection. There is no deformation of the nut

As-delivered condition

Sheet-metal preparation



Typical applications

Automotive sector

Body manufacture and chassis parts, e.g. lock connections, front ends, doors, hatches and bonnets, seats, instrument panels, rear panels, hinge attachments, fastening of bumpers

Non-automotive sector

Thin-walled formed sheet metal parts, e.g. household appliances, agricultural machines, construction industry and building hardware industry

Custom versions

Strength classes 10, 12; UNC/UNF whitworth, no thread, with threaded plugs, cap nuts, bearing bushings, centring elements, spacers