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Home > Tubtara blind rivet nuts > What's a Tubtara blind rivet nut?

What's a Tubtara® blind rivet nut?

A Tubtara® blind rivet nut is a mechanical fastener that ensures a
strong thread in :

  • thin metal plates/profiles: no thread forming possible
  • thick metal plates/profiles: too hard for thread forming or on site repair
  • composites or plastics: no thread forming possible


  • you install the Tubtara® from one side of the workpiece
  • this is useful in applications where there is no or little access
    from the rear
  • allows use in boxed or enclosed applications


  • the Tubtara® can clinch separate sheets together
    (therefore acting as a rivet)


  • the Tubtara® provides a strong thread in a plate or profile
  • allows you to assemble another component with a bolt or screw

Additional benefits

  • Simple blind installation
  • Fast assembly time: the speed & ease of assembly reduces the cost of Tubtara® versus other methods of providing threads in plates or profiles
  • Low assembly cost
  • Avoids damaging the surface of the workpiece: can be installed in pre-coated or pre-painted applications ensuring a clean undamaged thread
  • No deformation of the workpiece
  • No surface preparation
  • Works in close-to-edge applications
  • Appropriate for repeated assembly
  • Retained fastener cfr. machinery directive 2006/42/EC
  • Low installation cost: no expensive tools needed
Tubtara setting  

Installation in 3 seconds!

setting a Tubtara blind rivet nut


Setting dangers

  • Hole size too large (can affect setting & torque-to-turn)
  • Burr under the hole (can impact grip range)
  • Oiled / dirty hole (can affect torque-to-turn values of the Tubtara®)
  • Wrong hole shape for countersunk head (tightening bolt will loosen Tubtara®)


  1. Screw or bolt inserted for assembly
  2. Assembled part
  3. Workpiece: can be 1 sheet or several sheets
    which have to be clinched
  4. Bulb or counterhead: the chamber (unthreaded part)
    of the Tubtara® deformed during setting
  5. Strong, secured internal thread of the Tubtara®
  6. Open or closed end: closed end version minimalizes the ingress of dirt & fluids especially in combination with an underhead seal
  7. Chamfer: leads the Tubtara® into the hole
  8. Shank: round, (semi-)hexagonal, knurled or splined version
  9. Grip: the exact material thickness of the workpiece
  10. Head: flat, countersunk, low profile, watertight,
    anti-turn head or customized head types
Tubtara terminology


Dejond is manufacturing one of the widest, cold formed ranges of high quality blind rivet nuts in the world.  The standard programme can be briefly summarized with the following specifications :


  • Stainless steel 304 & 316
  • Steel
  • Aluminium

Thread sizes

  • From M3 till M12
  • Imperial sizes (on request)

Head forms

head forms

Body forms

body forms Tubtara

open or closed end

Grip ranges

  • Standard: from 0,5 mm up to 8,0 mm
  • Most common: 0,5 - 3,0 mm and 3,0 - 5,0 mm
  • Extended: 1,0 - 5,0 mm (multigrip) in steel and aluminium M6 - M10 available on request


The Tubtara® blind rivet nut is used in all kinds of sheet metal and composite applications. It avoids tapping, welding and working with a bolt and nut. It's a very good solution for enclosed applications that can only be accessed from one side.

Some marketsegments

  • Aerospace
  • Electronics
  • Telecom
  • Lighting
  • Medical
  • Automotive
  • Metal furniture
  • Food
  • Marine
  • Pulp & paper
  • White Goods
  • Railways
  • Chemical
  • Offshore
  • etc...

e.g. cabinets, pipes, cable trays, leg levelling, window & door profiles, rails, benches, fences, metal enclosures, heating installations, airconditioning, swimming pools, solar panels etc.

How to choose the appropriate Tubtara® ?

  • What kind of material and surface treatment do you need?
  • What is the required thread size?
  • Choose the correct griprange for the required material thickness of the application.
  • Choose the required head and shank style.
  • Do you need an open or closed end version?
  • Check the technical characteristics of the chosen Tubtara®.

Customized solutions

Doesn't our standard programme offer the appropriate Tubtara® for your specific application?
TUBTARA® blind rivet nuts manufactured to customers' specifications, can be developed to suit the demands of almost every application.

Always take the following into consideration:

  • Give us an accurate description of the application.
  • Do you have a drawing with indication of sizes, tolerances and exact sheet thickness?
  • Are there other special features and important remarks we need to know?
  • Can you give us a sample of the application and/or present fastener?
  • Do you have special technical requirements like torque value, upset load,
    tensile or thread strength etc.?
  • What type of setting equipment will be used?

Our R&D people will evaluate your request and our Sales Department will provide you
with information

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Dejond NV
Terbekehofdreef 55-59
2610 Wilrijk (Antwerp)
Belgium - Europe

T +32 3 820 34 11
F +32 3 820 35 11

VAT BE0404.943.722
RPL Antwerp

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Tubtara® blind rivet nuts
T +32 3 820 34 36
F +32 3 820 35 36

Fastening systems
T +32 3 820 34 33
F +32 3 820 35 70

T +32 3 820 34 11
F +32 3 820 35 11

Building systems
T +32 3 820 34 43
F +32 3 820 35 43

Opening hours warehouse:

Mo-Thu: 8 am till 12 pm and 1 till 4 pm
Fri: 8 am till 12 pm and 1 till 2:30 pm

Opening hours offices:

Mo-Thu: 8 till 12:30 am and 1 till 5 pm
Fri: 8 till 12:30 am and 1 till 4pm