Two 5lb boxes. Fas-N-Tite coarse thread drywall screws are engineered for interior drywall installation and fastening to wood studs. Featuring a #6 diameter and 1-5/8-inch length, these screws provide strong engagement in wood framing while reducing the risk of splitting or snapping in pre-drilled materials. The coarse thread design ensures secure holding power in drywall-to-wood applications. A flat head style allows the screw to sit flush with the drywall surface for a smooth, professional finish that is easy to mud and paint. Installation is simple using a standard #2 Phillips bit. Finished with a black phosphate coating, these drywall screws improve mud and paint adhesion while providing moderate corrosion resistance for interior use.