100pc M3/M4/M5/M6/M8/M10 Threaded Aluminum Flat Head Rivet Nut Inserts Nutsert

Flange thickness 0.9mm. Flange thickness 1.0mm. Flange thickness 1.5mm. Flange thickness 1.6mm. Flange thickness 2mm. Aluminium large head rivnuts. Internally threaded, open ended type. Large flange reinforces the hole in thin materials and increases pull out resistance.

eBay