Feature: 1. There are a variety of nuts of different specifications, all of which are classified and packed in plastic boxes, which are easy to carry and use. 2. Suitable for various metal plates, fastening pipes and other manufacturing fields. 3. Widely used in the assembly of automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations and other electromechanical and light industrial products. 4. Aluminum galvanized material processing, wear resistance, oxidation and corrosion resistance, long service life. 5. A large number, can meet your use and replacement needs, very practically. Specification: Item Type: Pull Riveting NutsModel: WJ-30045 Category: Flat Head Nails Material: Aluminum galvanized Rivet Diameter: Approx. 3 ~ 12mm / 0.1 ~ 0.5in Specification and Quantity: 100 x M3 Nut 100 x M4 Nut 100 x M5 Nut 100 x M6 Nut 100 x M8 Nut 100 x M10 Nut Specification M3 M4 M5 M6 M8 M10 M12 Inner Diameter(approx.) 3mm / 0.1in 4mm / 0.2in 5mm / 0.2in 6mm / 0.2in 8mm / 0.3in 10mm / 0.4in 12mm / 0.5in Outer Diameter(approx.) 4.9mm / 0.2in 5.9mm / 0.2in 6.9mm / 0.3in 8.9mm / 0.4in 10.9mm / 0.4in 12.9mm / 0.5in 14.9mm / 0.6in Inner Diameter of head(approx.) 5mm / 0.2in 6mm / 0.2in 7mm / 0.3in 9mm / 0.4in 11mm / 0.4in 13mm / 0.5in 15mm / 0.6in Outer Diameter of head(approx.) 8mm / 0.3in 9mm / 0.4in 10mm / 0.4in 12mm / 0.5in 14mm / 0.6in 16mm / 0.6in 18mm / 0.7in Head Thickness(approx.) 0.8mm / 0.03in 0.8mm / 0.03in 1mm / 0.04in 1.5mm / 0.06in 1.5mm / 0.06in 1.8mm / 0.07in 1.8mm / 0.07in Total Length(approx.) 9mm / 0.4in 11mm / 0.4in 13mm / 0.5in 15mm / 0.6in 18mm / 0.7in 21mm / 0.8in 24mm / 0.9in Joint Thickness(approx.) 0.5 ~ 1.5mm / 0 ~ 0.1in 0.5 ~ 2.5mm / 0 ~ 0.1in 0.5 ~ 3mm / 0 ~ 0.1in 0.5 ~ 3.5mm / 0 ~ 0.1in 0.5 ~ 3.5mm / 0 ~ 0.1in 1 ~ 5mm / 0 ~ 0.2in 1 ~ 6mm / 0 ~ 0.2in . Package List: 100 x Pull Riveting Nuts