Ensure your cement board installations are rock solid with these highly durable screws, designed for maximum performance and reliability. Each screw in the 140-pack features a star flat head for easy and secure fastening, making them ideal for both professional contractors and DIY enthusiasts. Measuring 1-5/8 inches in length, these screws are perfect for securing backerboards to wood or light gauge steel studs, offering outstanding holding power and corrosion resistance for a long-lasting finish.