uxcell 50 Pcs Car M8 Bronze Tone Carbon Steel Thread Flat Head Rivet Nut Insert Nutserts

Color: bronze tone thread inner diameter: 8mm/ 0.31inches  head inner diameter: 9mm/ 0.35inches  head Thickness: 1.5mm/ 0.06inches  outer knurling size: 11 x 9mm/ 0.43 x 0.35Inches(dl)  a Rivet nut fastener is a tubular Rivet with internal threads.  it can be installed in seconds form 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. Package includes: 50(+/-2%) x Rivet nut