Formerly Emhart Teknologies & Infastech


High strength, vibration resistant lockbolts with high, controlled clamp.

The Avdel Avdelok lockbolt is a high strength, vibration resistant lockbolt with high, controlled clamp. The Avdelok system offers high shear strength and wide selection of materials, head sizes and collar options giving this rivet an extensive variety of applications.

The Avdelok structural lockbolt is quick to install and easy to inspect for tampering, making this the ideal rivet for heavy engineering applications.

Key features and benefits

  • High strength, high speed assembly
  • High shear and tensile strength
  • Excellent vibration resistance
  • Consistent, high performance
  • Larger diameter Avdelok® XT lockbolts available from 12.7mm to 28.6mm (1/2" to 1-1/8") with tensile strength of over 300kN for heavy engineering applications
  • TIR approved - easy to inspect for tampering
  • Robust and rugged installation tools
  • Steel Avdelok pins typically offer comparable values to property class 5.8 threaded products.

Assembly materials

Avdelok can be used to fasten:

  • Metal to metal

Assembly applications

  • Automotive
  • Building and construction
  • Bridge building
  • Cabinets and enclosures
  • Commercial vehicle bodies
  • Fencing
  • Mining
  • Railways
  • Reefer cool and dry freight containers


  • Sizes: 4.8mm to 9.6mm (3/16" to 3/8") - for larger diameter lockbolts 12.7mm to 28.6mm (1/2" to 1-1/8"), please visit our > Avdelok XT page
  • Materials: Aluminium alloy, steel and stainless steel
  • Headforms: Brazier, countersunk, truss and large head
  • Collars: Full, half and flanged
Avdelok Series
Material Headform Series
Steel Brazier
90° Countersunk
Truss Head

Avdelok 2621
Avdelok 2622
Avdelok 2624

Stainless Steel Brazier Avdelok 2691
Aluminium Alloy Brazier
90° Countersunk
Truss Head
Large Head
Avdelok 2801
Avdelok 2802
Avdelok 2803
Avdelok 2804


Details can be found in the > Lockbolt Systems Catalog available in our Document Library.

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 Lockbolt 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 lockbolts 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:

> Lockbolts - Customised Designs

Installation Equipment
Lockbolt Installation Equipment can be found at the following page

> Lockbolt Installation Equipment