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Non-structural blind rivets


description benefits materials technical characteristics combinations finishes download



TREBOL RIVET (Aluminium)

Aluminium alloy fastener element with a large bearing area in the shape of a clover. It is ideal for applications with soft materials or those with a low resistance to pressure.


Bralo Trebol Rivet is a break-mandrel blind rivet designed for the fastening, in a fast and simple way, of rigid materials to soft or low resistance materials.

This rivet is provided with a big counter head in the shape of three double parts offering a large contact area on the blind side. This large expansion on the blind side distributes the load and the clamping force, reducing the risk of crushing and the material breaking.


Features and Benefits

  • Single-side access(blind rivet)
  • The formation of a large counter-head in the shape of three double parts offers a large clamping area with a good distribution of the force on the blind side.
  • Ideally used in applications involving soft or low resistance materials (plastic, fibre, wood).
  • It can be used in oversized drills.
  • Multi gripfeature. Just one size can be used to replace several standard rivets.
  • It can be adapted to big variations in the grip ranges of the materials to be fixed.
  • Highresistance to corrosion
  • It covers a wide variety of grip ranges, from 0.8 mm to 16 mm.
  • Mandrel locking system, avoiding electrical problems or pounding.
  • Available in an aluminium alloy with a 2.5 and 3.0 Magnesium
  • Fast, reduced cost and high quality assembly.
  • It requires simple, fast and lightweight tools.

  Materials to be fixed  

Metal to plastic

Metal to wood

Metal to fiberglass

Metal to soft materials and low resistance materials in general

Plastic to plastic

Plastic to soft materials and low resistance materials in general.


  • Plastic industry
  • Wood industry
  • Automotive
  • Caravans
  • Prefabricated houses
  • Trailers
  • Plastic or PVC carpentry
  • General plastic components.

Technical Characteristics

Materials:   Aluminium           

Diameters:   4.0 mm and 4.8 mm.

Heads:        Dome head , Large head

Dome head
It is the most versatile type of head. It provides enough bearing surface to retain all kinds of materials, except those extremely smooth and brittle
Large head
It provides double the bearing area compared to the dome head rivet and offers a great resistance. They are designed for applications where a soft or brittle material must be assembled to a rigid support material.

  Head / Mandrel Combinations:  

Aluminium /Aluminium                

Body Mandrel 2,4 mm 3,0 mm 3,2 mm 4,0 mm 4,8 mm 5,0 mm 6,0 mm 6,4 mm 9,7 mm
Aluminium Aluminium              


Bralo have no limits when it comes to variety. Our intensive search for materials and our constant use of innovative technology have established the widest range of finishes in the market.

Bralo Trebol rivets are available in an infinity of lacquering with liquid epoxy painting. From black to white, we have a range of over 50 RAL colours and we can make special lacquering under request.

For a higher resistance to corrosion and durability, we can apply many protective coatings, including anodising and organic coatings such as Delta Seal for example. The anodising protects aluminum from abrasion and corrosion and allows it to be tinted in a wide variety of colours.

Aluminium Lacquering, anodising and organic coating

With working alongside the customer, we can make custom designs adapting to the specific needs of every application. Please contact us, should you need more information about special finishes.

Name Body Mandrel Dome Large Countersunk









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