Final answer:
B. Type S. The screws appropriate for attaching 1/2 inch gypsum board to metal studs are Type S screws. These are designed with sharp points and fine threads for penetrating and gripping metal. Always check local building codes and manufacturers' recommendations for specific requirements.
Step-by-step explanation:
The screws used to attach 1/2 inch gypsum board to metal studs are typically referred to as Type S screws. These screws are specifically designed for securing gypsum board to metal framing, which might be made from materials such as steel or aluminum. Type S screws have a sharp point and fine threads that are meant to easily penetrate and grip the metal stud, providing strong attachment for the gypsum board.
When working with metal studs that are 0.033-inch to 0.112-inch thick, the typical practice would be to use Type S screws for the job. It's essential to ensure the length of the screw is adequate for the thickness of the gypsum board and that it can penetrate the metal stud securely without stripping the thread or damaging the material.
Please note that, while Type S screws are commonly used for this application, it is always recommended to consult with local building codes or instructions provided by the manufacturer of the materials being used. These sources may specify different types of screws or additional requirements for securing gypsum boards to metal studs in certain environments or for certain uses.