Hexagonal insert nut

Hexagonal fastening element that provides a great resistance to rotation and extraction. It has been especially designed for the most demanding applications.

The Bralo Hexagonal Insert Nut is a mechanical fastening element providing a grooving feature in those applications with a single-side access that require a very high resistance to rotation. It is ideal for applications with thin metal sheets, tubes, extrusion or plastics.

It offers an exceptional mechanical resistance. Compared to the round body insert nuts, the hexagonal shape of the section and the inner hole substantially increases the resistance to rotation and extraction in thin sheets.

The result is a homogeneous riveting that ensures a solid and high quality joint.

Features and benefits
  • The hexagonal shape of the section and the inner hole doubles the resistance to rotation in thin sheets, compared to the insert nuts with round body.
  • Excellent solution to obtain a grooving feature in items with reduced thickness (0.5mm)
  • Single-sided access (blind insert nut).
  • It offers an exceptional mechanical resistance that prevents rotation.
  • Versatility. They function both as an insert nut and a joint rivet.
  • It resists usual unscrewing.
  • The surface does not suffer from heat stress nor deformations.
  • It is available in different finishes that improve its resistance to corrosion.
  • Available in large and in reduced head
  • Its installation can be incorporated at any stage of production.
  • Fast and high precision assembly.
  • It requires simple and ergonomic tools, that can be pneumatic, automatic or hand tools.
  • The riveting process is environmentally friendly, free of smoke, sparks, fumes, etc.
  • Automotive industry
  • Trucks
  • Bodywork. Industrial and military vehicles.
  • Metal industry
  • Metal carpentry
  • Electrical appliances.
  • Electronics
  • Recreational and fitness equipment
  • Bicycles
  • Air conditioning –HVAC-
Technical characteristics

Materials:  Steel

Diameters: M-4, M-5, M6, M-8, M-10, M-12

Heads: Large and reduced heads.

Large Head
It provides a big bearing area that strengthens the hole and prevents traction or pulling failures. It can also be used as a separator.
Reduced Head
It offers the possibility of creating a virtual flat surface without the need of a drilling machine.

Fondo: Open and closed

SteelZincating (galvanic and alloys).

·         NYPLAS X

Under request, this large head hexagonal insert nut is available with a PVC sealing under the head. This ring provides a bigger sealing that absorbs vibrations and increases the item resistance to temperature variations.


The extra reduced hexagonal insert nut is made of steel. Its head has an extra thin lip that allows installation with an almost flat finish, joining two or more sheets.