Feature: 1. The nut is made of carbon steel and the surface is galvanized, which is strong and durable. 2. The embedded nut makes it easier to insert the workpiece and can be easily installed in a variety of materials, including steel, plastic, etc. 3. There are many specifications of M3, M4, M5, M6, M8 and M10, which can meet your different needs. 4. There are 300 rivet nut installation tools to make the work easier and faster. 5. With small size, the nut is very easy to carry and store and has good performance. Specification: Item Type: Rivet Nut Set Material: Carbon steel Specifications: M3, M4, M5, M6, M8, M10 Quantity: 300pcs Surface Treatment: Galvanized Application: Rivet nuts can be installed in a variety of materials, including steel, plastic and fiberglass 1 Box rivet nut: M3: 80 x two colors total , M4: 70 x two colors total, M5: 50 x two colors total, M6: 50 x two colors total, M8: 30 x two colors total, M10: 20 x Two colors total. Package List: 1 Box Rivet Nut Set1 x Plastic Packaging Box