if there is any dissatisfaction please contact us immediately. 🏅 3.Various Size for Choice ✨ In addition to this kit we also provide you with a variety of other sizes of single kits, as well as SAE Rivet Nuts Kits of various sizes, there are many choices, I believe that there is always one that you need! 🏅 4.Easy for Carrying ✨ These rivet nuts are stored in a compartment spaced box for easy use and carry, which can avoid mixing with each other. The latest Kids merchandise from the Formula 1 season including Team Caps, T-shirts and Jackets, for younger F1 fans Ideal for assembling boxes or closed sections such as castings, panels and pipes. 🔘【Easy to Use】: These knurled valve body threaded nuts can be easily installed from one side of the workpiece and create a strong connection to the material. Buy 50/ 20/ 10PCS M3 M4 M5 M6 M8 Black Carbon Steel Large Flat Hex Hexagon Socket Head Rivet Connector Insert Joint Sleeve Cap Nut at for... Threaded Inserts For Wood Swpeet 250Pcs 7 Sizes Black M3 M4 M5 M6 M8 M10 M12 Metric Thread Half Plastic Rivets It can also reduce the risk of losing them in the transportation process. Hilitchi 250PCS Black Thead Half Hexagonal Flat Head A diagram inside the storage box corresponds to the every compartment with labels so you know what size each part is , which can help you get the item quickly and corectly, and put back them in place when you don't need. Standard Metric size, black galvanized surface, thread half hexagonal with knurled body, exquisite workmanship, sufficient quantity, enough to meet your use and replacement needs. 🔘【Premium Quality】: Rivet nut is made of high quality carbon steel, anti-corrosion and anti-rust, long-term use; black zinc-plated surface helps to prevent surface damage and discoloration, good antioxidant effect, load-bearing threads, healthy and lead-free, non-toxic and tasteless, sturdy and durable, non-deformation. 🔘【Metric Rivet Nuts Kit】: You will receive 250pcs of Metric rivet nuts, with 7 sizes, M3 × 60pcs, M4 × 60pcs, M5 × 60pcs, M6 × 50pcs, M8 × 20pcs, M10 × 5pcs, M12 × 5pcs.