Working Principle and Practical Usage of Blind Rivet Nuts

1. What Are Rivet Nuts

Blind rivet nuts, also known as threaded rivet nuts or insert rivet nuts, are widely used fasteners specially made for thin plate connection.

Compared with traditional welding nuts and tapping threads, rivet nuts feature easy operation, high connection strength。

2. Working Principle of Rivet Nuts

The core working principle of rivet nuts is plastic deformation extrusion fixing.

When installing, put the rivet nut into the pre-drilled hole of the workpiece, match the special rivet gun with the internal thread of the rivet nut, and pull the rivet gun steadily. Under continuous pulling force, the tail end of the rivet nut will shrink and deform inward and expand outward closely fit the hole wall.

3. Common Types of Rivet Nuts

• Flat head rivet nuts: most universal, suitable for ordinary flat surface installation
• Countersunk head rivet nuts:embedded installation, smooth surface without protrusion
• Half hexagon rivet nuts: anti-rotation, avoid slipping during assembly
• Full hexagon rivet nuts: high anti-torsion performance, used for heavy load connection

Material options include carbon steel, stainless steel 304, stainless steel 316 and aluminum alloy, meeting anti-rust, high strength and lightweight demands.

4. Standard Usage & Installation Steps

1. Drilling: drill holes on the connected plate according to the outer diameter specification of rivet nuts, keep the hole diameter within standard tolerance
2. Positioning: insert the rivet nut into the reserved hole smoothly
3. Tool connection: screw the pull rod of rivet gun into the inner thread of rivet nut
4. Pull forming: hold the rivet gun tightly and pull steadily until the nut tail is fully deformed and fixed
5. Finish: withdraw the pull rod, complete installation and start bolt assembly

5. Main Application

Rivet nuts are widely applied in sheet metal cabinet, automotive interior parts, railway equipment, ship accessories, outdoor furniture, new energy equipment and thin-shell product assembly. They are the best fastening choice for rapid assembly and disassembly.

Blind rivet nuts have simple working principle and convenient operation, which greatly improves the installation efficiency of thin plate threaded connection. If you need customized specifications and bulk fastener solutions, welcome to contact usfor professional support.