Specifications: This product is suitable for the fastening field of various thickness plates and pipes (0.5MM-6MM). It replaces the traditional welding nuts and makes up for the shortcomings of thin metal plates, thin pipes that are easy to melt, and welding nuts that are not smooth. Rivet nuts are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, decorations, etc. Item Name: Rivet Nuts Kit Quantity: 205Pcs/Set Material: 304 Stainless Steel Thread: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5 Features: Flat Head, Portable, Easy to Use Box Size: 19.5cm x 13cm x 3.6cm/7.68" x 5.12" x 1.42" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 50 x M3 Rivet Nuts 50 x M4 Rivet Nuts 45 x M5 Rivet Nuts 35 x M6 Rivet Nuts 15 x M8 Rivet Nuts 10 x M10 Rivet Nuts