38mm drywall screws are commonly used for attaching drywall panels to wooden studs or framing in interior wall construction. These screws are suitable for medium-sized projects where a moderate length is needed to securely fasten the drywall to the studs. Drywall screws typically have a coarse thread and a sharp point, allowing them to grip the drywall and wood securely without the need for pre-drilling. They are designed to hold the drywall firmly in place while minimizing damage to the surface of the drywall.