Irregularly shaped threads in these nuts form a tight grip, preventing screws from backing out in vibration-heavy environments. Our most twist-resistant rivet nuts, these hex-shaped nuts are held in place by their flat sides to keep them from spinning as you tighten screws. They're also among our strongest rivet nuts and hold up in heavy duty applications. Use these rivet nuts to create reusable threads in sheet metal and other surfaces that are too thin to be tapped. They’re also known as blind inserts—installation requires access to just one side of your material. The flange distributes the load and holds these nuts against the surface. Made of zinc-plated steel, they resist corrosion in wet environments.

Install in a hex-shaped punched hole with a rivet nut tool. The tool collapses the nut, creating a backside flange that holds the nut to the material. Screw-locking threads require high torque for fastening and unfastening, so you may need an impact wrench to remove screws.

Length is measured from under the flange. Installed length is the maximum length of the barrel when installed.

For technical drawings and 3-D models, click on a part number.