The self-aligning slide-in T-nut is a strong fastening option that loads from the profile ends. The projection on the T-nut aligns it in the T-slot for easy assembly. This fastener is available in a variety of sizes and 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/.