Tubtara® Blind Rivet Nuts
Tubtara® is a mechanical fastener that ensures a strong thread in thin and thick metal plates or profiles, in composites or (engineered) plastics. It is ideal for applications where there is little or no access from/at the rear. It can clinch separate sheets or profiles together – acting as a rivet – and enables the (dis)assembly of a third component via a bolt or screw.
Benefits at a glance
10 reasons for choosing Tubtara® blind rivet nuts:
- Simple blind installation: applied from one side of the workpiece
- Low assembly cost versus other methods of installing threads in plates or profiles
- Fast, easy assembly: further reducing the assembly costs
- Zero-risk installation: no damage to the workpiece surface, enabling installation in pre-coated or pre- painted applications for a clean, undamaged thread
- No deformation of the workpiece
- No surface preparation required
- Ideal for close-to-edge applications
- Suitable for repeated assembly
- Retained fastener: cf. Machinery Directive 2006/42/EC
- Low installation cost: no expensive tools or applications
Terminology
- Screw or bolt inserted for assembly of another part
- Assembled part
- Workpiece: can be one sheet/profile or several sheets which require clinching
- Bulb or counter head: the chamber (unthreaded section) is deformed during setting
- Strong, secure internal thread
- Open or closed end: closed-end version prevents the ingress of dirt and fluids, especially in combination with an underhead seal
- Chamfer: guides the Tubtara® into the hole
- Shank: round, full- or semi-hexagonal, knurled or splined version
- Grip
- Head: flat, countersunk, low profile, watertight, anti-turn head or customised head type




