Experience the robustness and reliability of this heat-treated zinc steel hex head cap screw, designed for strength and durability. Measuring 5/16 inches in diameter and 3 inches in length, each screw is crafted to meet rigorous standards and ensure a secure fit in a variety of applications. Whether you're undertaking a professional project or a DIY task, this 100-pack set provides ample supply for your needs, delivering consistent performance and peace of mind.