Features: <br> <br>Made of high quality carbon steel and zinc plated, sturdy and durable. <br>The knurled nut makes it easier to insert into the work piece. <br>Can be easily installed in many different kinds of material including steel, plastic and fiberglass. <br>Great rivet nut installation tools to make work easier and quickly. <br>Comes with a plastic organizer box for storage. <br> <br>Specification: <br>Material: Zinc Plated Carbon Steel <br>Type: Flat Head <br>Diameter: 3-10mm <br>Weight: Approx.457g/ 16.1oz <br>Size: M3/M4/M5/M6/M8/M10 <br>Quantity: 180pcs <br> <br>Package List: <br>50 * M3 Rivet Nut <br>50 * M4 Rivet Nut <br>30 * M5 Rivet Nut <br>30 * M6 Rivet Nut <br>10 * M8 Rivet Nut <br>10 * M10 Rivet Nut <br>1 * Box <br> <br>Note: <br>Please allow slight error due to manual measurement. Thanks for your understanding.<br>1、Made of high quality carbon steel and zinc plated, sturdy and durable. <br>2、The knurled nut makes it easier to insert into the work piece. <br>3、Can be easily installed in many different kinds of material including steel, plastic and fiberglass. <br>4、Great rivet nut installation tools to make work easier and quickly. <br>5、Comes with a plastic organizer box for storage.