Product Description150PCS Alumimum Rivet Nuts M3/M4/M5/M6/M8Package Included:  150PCS Rivet Nuts With Box  Specification:  Total: 150 PCS   Material:Alumimum   Color: As shown as the picture   Size:  M3/M4/M5/M6/M8   Quantity: 50/40/30/15/15/PCS  Application:  Rivet Nuts Can Be Installed in Many Different Kinds of Material Including Steel, Plastic and Fiberglass  Note:   1.Please allow 1-3mm difference due to manual measurement.   2.Due to light and screen difference, the item's color may be slightly different from the pictures.