Manual riveter nut set in alloy steel for M3 M4 M5 M6 M8 threaded inserts, includes 86PC or 106PC interchangeable mandrels and handles for metal and sheet fabrication work
Alloy Steel Manual Riveter Nut Set for M3 M4 M5 M6 M8 Threaded Inserts

This manual riveter nut set provides a straightforward, tool-based solution for creating strong, threaded fixing points in thin materials where welding is impractical or impossible. It is designed for use with rivet nuts (also known as threaded inserts or nutserts) in metric sizes from M3 up to M8. The core tool is made from alloy steel and works by mechanically expanding the rivet nut within a pre-drilled hole, forming a secure anchor on the blind side of the workpiece. Available in two package options—an 86-piece set or a 106-piece set—it includes the necessary interchangeable mandrels and handles to cover the stated size range, making it a versatile kit for automotive repair, metal fabrication, and general workshop use.
Features and Construction

The set's functionality is built around its interchangeable components and robust material choice, offering a practical tool for various fastening scenarios.
Material and Build
The manual riveter tool, including its handles and mandrels, is constructed from alloy steel. This material choice is directly relevant to the tool's application, as it needs to withstand the repeated pulling force required to set a rivet nut without deforming. The construction focuses on providing the necessary strength for the task, rather than incorporating lightweight or decorative elements.
Size and Practical Fit
The tool is designed to install rivet nuts in five specific metric thread sizes: M3, M4, M5, M6, and M8. The inclusion of interchangeable mandrels means a single tool body can be adapted for these different sizes. The two kit options (86PC and 106PC) indicate varying levels of completeness, likely including different quantities or types of spare mandrels, rivet nuts, or other accessories, though the exact breakdown is not detailed.
Uses and Placement

This tool addresses specific fastening challenges in fabrication and repair, providing a mechanical alternative to welding or using through-bolts.
Event or Professional Use
In professional settings such as vehicle workshops, metalworking shops, or assembly lines, this tool allows for the quick installation of sturdy threaded points in sheet metal panels, chassis components, or enclosures. It is particularly useful for creating serviceable threads in materials that are too thin to tap reliably or where access is only available from one side.
Everyday Home Use
For the serious DIY enthusiast or home mechanic, this set enables projects that require solid threaded mounts. This could include installing fittings to a car body, adding reinforced mounting points to a custom-built trailer, or securing components to metal furniture or shelving units where a nut and bolt cannot be used.
Benefits and Buying Value

The value of this tool lies in its specific function, material durability, and the choice between two kit sizes to match different usage frequencies.
Reuse and Low Maintenance
The alloy steel construction suggests the main tool components are built for long-term reuse. The manual operation requires no power source, compressed air, or batteries, and the simple mechanical action means there are few parts to wear out or maintain beyond keeping the threads clean and occasionally checking for wear on the mandrels.
Why Choose This Product
This manual riveter nut set offers a focused solution for installing threaded inserts. Its primary advantages are the clear coverage of five common metric sizes (M3 to M8) and the alloy steel build suited to workshop use. The choice between an 86-piece or 106-piece set allows users to select a kit based on their anticipated frequency of use or desire for more spare components.
