National Nail Corp 280199 Fine Thread Hardened Steel #2 Phillips Drive Head Phosphate Finished Drywall Screw 3.5" 25 LB comes in a clear plastic pail. Ideal for attaching drywall or wall board to wood studs. No pre-drilling required. Fine thread, hardened steel construction. With #2 Phillips drive head. Phosphate finished. Thin shank with sharp point. Won't tear surface paper of the drywall.