What type of screws are used to attach steel studs to the top and bottom steel track?

Pan head screws, specifically type S, are ideal for attaching steel studs to the top and bottom steel track due to their design and function. The pan head offers a larger surface area that helps distribute the load and prevents the screw from pulling through the material. Additionally, type S screws are specifically designed for use with metal and have the unique feature of being self-drilling, which allows them to create their own hole as they are driven into the metal track and stud. This attribute streamlines the installation process and enhances the screw's ability to grip within the material, resulting in a secure connection.

Other options may not provide the same level of efficiency or effectiveness for this application. For instance, flat head screws typically sit flush with the surface but might not be optimal for metal connections. Hex head screws require a wrench for installation, which is less convenient in tight spaces or for quick assembly. Self-tapping screws, while useful in many metal applications, may not have the specific design advantages that pan head type S screws offer for this particular task.