Feature:1. A variety of nuts of different specifications, all nuts are classified, easy to carry and use.2. These rivet nuts are suitable for various metal plates, fastening pipes and other manufacturing industries.3. Widely used in the assembly of automobiles, aviation, railways, refrigeration, elevators, switches, furniture, decorations and other electromechanical and light industrial products.4. The exterior is coated with colored zinc, which is resistant to wear, oxidation and corrosion, and has a long service life.5. Overall smoothly, flat without burrs, exquisite workmanship, strong and durable.Specification:Item Type: Rivet NutMaterial: Carbon steelCategory: Color Zinc Flat Head Rivet NutsExterior Treatment: Color zinc plating.SpecificationM3 Approx.M4 Approx.M5 Approx.M6 Approx.Inner Diameter3mm / 0.1in4mm / 0.16in5mm / 0.2in6mm / 0.24inOuter diameter4.9mm / 0.19in5.9mm / 0.23in6.9mm / 0.27in8.9mm / 0.4inInner Diameter of Head5mm / 0.2in6mm / 0.24in7mm / 0.28in9mm / 0.35inHead Outer Diameter8mm / 0.31in9mm / 0.35in10mm / 0.39in12mm / 0.47inHead Thickness0.8mm / 0.03in0.8mm / 0.03in1mm / 0.04in1.5mm / 0.06inTotal Length9mm / 0.35in11mm / 0.43in13mm / 0.5in15mm / 0.59inRiveting Thickness0.5 ~ 1.5mm / 0.02 ~ 0.06in0.5 ~ 2.5mm / 0.02 ~ 0.1in0.5 ~ 3mm / 0.02 ~ 0.12in0.5 ~ 3.5mm / 0.02 ~ 0.14inPackage List:100 x Nut