pack contains 5LBS of Drywall screws and 1 PSD ACR driver bit. With our patented Stick-Tight drive system, dropped screws are a thing of the past. It allows for TRUE one-handed anti-wobble installation, freeing up the other hand to accurately position materials. Check out our product video to see what Stick-Tight Technology can do! Phillips Screw Company Drywall Screws also feature a coarse thread, high quality steel construction for superior strength, a black phosphate coating, bugle head for a neat finish and a sharp point for an instant bite. Our screws are also backwards compatible with any standard phillips and square drive.