Formerly Emhart Teknologies & Infastech


Developed for blind hole applications in wood, plastics, fibreglass and aluminium with the flexibility to also be used in harder substrates.

The Avdel Grovit Speed Fastening® system has been used since the sixties and has been continually developed by Avdel for blind hole applications in wood, plastics, fibreglass and aluminium. The Grovit rivet also has the flexibility to be used in harder substrates. The grooves on the Grovit rivet provide an increased pull out resistance.

Key features and benefits

  • Annular grooves on the body expand radially during installation to provide a vibration resistant joint and increased pull-out resistance
  • Suitable for blind hole applications
  • Placed using a unique repetition mandrel system for high speed assembly

Assembly materials

Grovit can be used to fasten:

  • Metal to metal
  • Metal to plastic
  • Plastic to plastic
  • Aluminium alloy
  • Wood
  • Fibreglass

Assembly applications

  • Automotive
  • Electrical equipment
  • Domestic appliances
  • Injection moulded components


  • Sizes: 2.4mm to 4.8mm (3/32" to 3/16")
  • Materials: Aluminium alloy and steel
  • Headforms: Dome/mushroom or countersunk
Grovit - Series
Material Headform Series
Aluminum Alloy Dome
120° Countersunk
Grovit 1103
Grovit 1104
Steel Dome Grovit 1101


Surface finish options
If you are looking for other surface finish options than shown in the above datasheets please download our

> Surface Finishes and Fastener Matrix for Speed Fastening Systems.

This will show you what surface finish options are possible to apply to our standard fastener types as "customer specials".

Customised Designs
We can design and manufacture breakstem fasteners with a wide variety of forms and finishes to meet your unique assembly requirements. Please refer to this page to find examples of our customised capabilities:

> Speed Fastener - Customised Designs

Installation Equipment
Speed Fastener Installation Equipment can be found at the following page

> Speed Fasteners Installation Equipment

To select the suitable combination of Grovit nose equipment, mandrel and follower spring to equip the installation tool please refer to the Speed Fastening Systems catalog or the tool manuals.