The 90 degree straight base connector is made of nylon and is used with a Quick Frame profile which has built-in ridges that bite into the fastener to create tension without the use of hardware. It is convenient for projects that will be attached or mounted at a 90 degree angle to any flat surface or T-slot profile and provides a clean, flush connection. The 90 degree straight base connector connects profiles quickly and easily using only a soft-faced mallet to form light-duty yet sturdy builds.
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/.