The riveting principle of rivet nuts is to use a specialized rivet gun to screw the rivet bolt into the nut's internal thread. The pulling force of the gun causes the deformable part of the nut to plastically deform and expand outwards, thus clamping the connected parts between the expanded part and the nut head.
The main installation tools include manual rivet guns, pneumatic rivet guns, electric rivet guns, and hydraulic-pneumatic installation tools. The tool selection must be based on the nut's specifications and material.