The threaded insert allows 45 series pivot joints to be mounted to a 45 series profile end. The insert is formed through thread rolling, creating strong, uniform, and accurate external threads. It has high tensile, shear, and fatigue strength. Use a 1/4 inch hex tool.
For technical details and images, please search for the product using the 80/20 interactive catalogue found here: https://catalogs.8020.net/80-20-Catalog-26/C/.