Drop-In Quarter Turn T-Nut 1/4-20 is an economical and durable fastening solution for aluminum extrusion profiles. This easy-to-install quarter turn T-nut has a strong grip with its ridges that bite into the surface of the profile, providing a strong connection. It can be used to mount components securely, either from the profile ends or side, making it an ideal option for applications where the ends are inaccessible. It also features a zinc finish that offers superior protection against corrosion.