Avdel Avdelmate

Fast Facts:

  • Non-structural breakstem rivet.
  • Rivet stem retained in tubular component to avoid loose stems.
  • Blind hole, one-sided installation capability.
  • Extra-wide grip range from 15.8 mm to 98.4 mm (5/8″ to 3-7/8″).
  • Large bearing area against both sides of the application.
  • Spreads the tail bearing load/clamp load on the rear sheet to prevent damage.
  • Clamps tightly and securely without crushing parent material.
  • Excellent hole fill via radially expanded rivet body for a strong and vibration-resistant joint.
  • Low profile headform on both sides of the application for a neat appearance.
  • Can be used to fasten metal to metal, plastic to plastic, metal to plastic, metal rear sheet, and various composite materials.
  • Breakstem fasteners can be customized to meet unique assembly requirements.


  • Sizes: 4.8 mm and 6.4 mm (3/16″ and 1/4″)
  • Materials: Aluminum alloy and steel
  • Headforms: Dome
Material Headform Series
Steel Dome Avdelmate® SSLMS
Aluminium Alloy Dome Avdelmate® BALMS
Body: Aluminium
Mandrel: Steel
Tube: Aluminium
Dome Avdelmate® BSLMS


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


The Avdel Avdelmate rivet is a two-piece wide-grip, breakstem fastener suitable for a range of applications in soft, thin sheet, and brittle materials.

This two-piece breakstem fastener consists of a rivet and tubular section. Upon insertion, the rivet stem is retained in the tubular component, avoiding loose stems.

Avdelmate fasteners provide a secure clamp without crushing the parent material and good hole fill due to the radially expanded rivet body. This makes the Avdelmate® fastener ideal for stadium seating, furniture, playground equipment, street signs, and racking applications.