WHAT IS A Rivet Nut?
A Rivet Nut fastener is a tubular rivet with internal threads.  It can be installed in seconds from one side of the work.
Once installed, no finishing work is required on the Rivet Nut fastener. The added benefit of not only being a dependable fastener, they are ready to use with clean threads available for screw attachments.
Blind thin sheet materials that are too thin for a tapped thread. Blind Rivet Nuts also are used when an application has little or no access to the backside as they can be installed from the front side of the work piece.

Application:
Rivet nut fit for all kinds of sheet metal, pipes, and other areas of the manufacturing industrial fastening
Currently it is widely used in the assembly of automotive, aviation, railway, refrigeration, elevators, switches, instruments, furniture, decoration, electrical and light industrial products.
Don't need welding nut, riveting firm with high efficiency, easy to use 

Note:
Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.
The measurement allowed error is +/-1-3 cm.