Hardlock Rivet

High resistance single-side access fastener. It is designed for the most demanding applications when it comes to tensile and shear strengths. The Bralo Hard Lock rivet, due to its large expansion on the blind side, is suitable for applications with thin sheets.

Bralo Hard Lock Rivet has been designed for the fastening of elements that require exceptional tensile and shear strengths. It has been designed to meet the most heavy-duty fastening applications and ensures a high quality fastening.

The load and torque forces are well distributed, due to its feature of large expansion on the blind side. It is, therefore, particularly suitable for the work with thin sheets.

Its unique grooved mandrel design allows the head of the rivet to be completely held inside the body due to a mechanical locking, avoiding thus any kind of electrical problems and noises caused by loose mandrels. It allows a homogeneous riveting, a solid and high quality joint that resists all kinds of vibrations.

Features and benefits
  • Exceptional shear and tensile strengths.
  • Single-side access.
  • Effective head locking system through a mechanical locking of the grooves.
  • Large bearing area on the blind side.
  • Excellent torque values for the fastening of the parts at work, especially suitable to work with thin sheets.
  • Both the load and the torque forces are well distributed due to the wide expansion on the blind side.
  • Solid and high quality fastening, resistant to vibrations.
  • Excellence and long durability.
  • It requires fast and secure tools.
Materials to be fixed
  • Metal to Metal
    • Aluminium
    • Steel
    • Stainless Steel
  • Thin metal to thick metal
  • Automotive industry
  • Bodyworks and commercial vehicles.
  • Construction
  • Ladders and shelves
  • Containers
  • Railway
Technical characteristics

Materials: Aluminium, Steel and Stainless Steel.

Diameters: 3.2 mm., 4.0 mm., 4.8 mm., and 6,4 mm. in Steel - 3.2 mm., 4.0 mm. and 4.8 mm. in Stainless Steel.

Heads: Dome head. Additionally, this Bralo Hard Lock Rivet is also available in a Super-Large Head of 19 mm.

SteelLacquering, zincating (galvanized and alloys) and organic coating
AluminumLacquering, anodising and organic coating.
Stainless stLacquering
Name Body Mandrel Dome Large Countersunk
Hard Lock Steel Steel
Stainless st. Stainless st.
Aluminium Aluminium