Engineered for optimum performance in multiple materials, Power Pro One screws are the One screw you'll ever need. Developed to outperform and replace standard wood, sheet metal and concrete/masonry screws, the One screw program simplifies your toolbox by using a single, innovative, engineered screw design to satisfy projects that fasten into wood, metal, concrete, drywall and plastic. This zinc-plated screw is ideal for interior applications. it is not recommended for exterior projects or treated lumber. Common applications include electrical, plumbing and metal projects. The pan head design and star drive provide an exposed finish look and strong draw down power. Manufactured with spiral flutes, serrated hi-lo threads and a three-sided pyramid point, no pre-drilling is required in wood, drywall, plastic or metal up to 20 ga thick. Concrete and masonry applications require a pre-drilled a hole. Each package includes a free durable Pro-Stik star driver bit.