The economy drop-in T-nut is a fastening option that loads either from the profile ends or side, which is helpful for applications where the ends are inaccessible. It is a cost-effective fastener that provides infinite positioning along the profile T-slot and is available in an option of threads.
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/.