Pro Grade Metric Rivet Nut Mandrel Kit For M3 To M12 In Carbon Steel All In One Set With Three Configs 55Pc With 5 Mandrels And 50 Nuts 66Pc With 6 Mandrels And 60 Nuts And 77Pc With 7 Mandrels And 70 Nuts For DIY Auto And Fabrication

Metric Rivet Nut Mandrel Kit for M3 to M12, Carbon Steel
✔️ 55pc: 5 mandrels, 50 nuts (M4-M10); 66pc: 6/60 (M3-M10); 77pc: 7/70 (M3-M12)

The kit is a metric rivet nut mandrel set built in carbon steel, designed for secure threaded inserts in metal panels, automotive work, and fabrication projects. Three configurations keep the essentials ready in the garage or workshop.

✅ Carbon steel mandrels deliver durability for repeated rivnut installs
✅ Three configurations cover M3-M12 sizes across sets
✅ Quick twist-on mandrel changes speed up size swaps
✅ Works with manual rivet nut tools, drill adapters, and pneumatic setters
✅ Includes matching rivet nuts per configuration

💡 What is a rivet nut mandrel kit used for in metal fabrication?

A handy tool for installing threaded rivet nuts into panels, aluminum, and plastic to create secure threaded inserts. - For efficient rivnut insertion in metal, plastic, and composites - Supports M3 to M12 sizes depending on kit configuration - Compatible with manual rivet nut tools, drill adapters, and pneumatic setters ✝️