Transform your construction projects with these high-performance concrete screws, designed for durability and strength. Each screw measures 19/64 inches in diameter and 3-1/2 inches in length, providing reliable fastening for a variety of applications. The star bugle head ensures a secure grip and easy installation, making these screws a must-have for any professional or DIY enthusiast. With a pack of 25, you'll have plenty of fasteners to complete your project efficiently and effectively.