Installation Equipment of Stainless Steel Rivet Nuts

1. Being installed by hand tools

The hand tools are similar to tools for installing blind rivet nuts.

2. Being installed by power tools

The power tools can be handheld or mounted to a linear actuator for fully or semiautomatic operation. They can also be mounted to six-axis robots.

1) The simplest power tool for installing stainless steel rivet nuts is the pneumatic “spin-spin” tool. The fastener is threaded onto a mandrel at the end of the tool. The fastener is then inserted into a hole in the workpiece. When the rivet nut is clinched firmly in place, the mandrel spins in the opposite direction, unthreading itself from the nut and leaving the fastener’s internal threads intact.

2) The “spin-pull” tool could be seemed as an upgrade from the spin-spin tool. When the fastener is inserted into the workpiece, hydropneumatic pressure is applied to pull back the mandrel a set distance. Once the fastener is set, the air motor re-engages to back the mandrel out of the nut.

3. Being installed by the pull-to-pressure tool

It works alike the spin-pull tool, but instead of pulling to a set distance, it pulls to a set pressure. A spin-pull tool is better used for fastening soft plastic. If you’re fastening metal or a hard plastic, such as glass-filled nylon, a pull-to-pressure tool is more consistent.