Engineered for strength and durability, this heat-treated hex head cap screw is crafted from premium zinc steel, making it an excellent choice for various construction and mechanical applications. With a dimension of 5/16 inches in diameter and a length of 4-1/2 inches, it ensures a secure fit and reliable performance. This pack of 50 screws is ideal for large projects, providing both quantity and quality to meet your fastening needs efficiently.