Experience remarkable fastening power with these premium structural screws, designed for high-performance in both professional and DIY projects. Featuring a robust 5/16-inch diameter and an impressive 6-inch length, these screws ensure a secure and steadfast hold in a variety of materials. The star washer head enhances grip and reduces cam-out, making installation smooth and efficient. Ideal for structural applications, this 40-pack provides ample supply for large projects, ensuring durability and reliability in every connection.