Rivet Nut Tool Kit Number of Pieces 152 Number of Rivet Nuts 150 Tool Types Included Rivet Nut Installation Tool Thread Size M4 M5 M6 Rivet Nut Length 240 mm Rivet Nut Material Aluminum Steel Finish Plain Mandrel Sizes Included M3 M4 M5 M6 System of Measurement Metric Includes (50) Inserts Nosepiece Sizes Included M3 M4 M5 M6 Rivet Nut Types Included Rivet Nut