Features 1、Exact thread, galvanized surface, flat head design, so that the rivet nut is easy to fix, not deformed, and not easy to rust. 2、Convenient storage, with 6 compartments storage box, products of different sizes are placed separately to avoid confusion. 3、Easier to install, if you use hand tools, remember not to pull too tight, otherwise it will pull the thread. 4、Widely used in electrical appliances and industrial products such as automobiles, furniture, decorations, etc. 5、Suitable for many situations such as air‑conditioning, fire fighting, gas, medicine, chemical industry and sheet metal factories. Specification Item Type: Aluminum Rivet Nuts Material: Aluminum Package List 45 x M3 Aluminum Rivet Nuts 40 x M4 Aluminum Rivet Nuts 40 x M5 Aluminum Rivet Nuts 30 x M6 Aluminum Rivet Nuts 20 x M8 Aluminum Rivet Nuts 15 x M10 Aluminum Rivet Nuts