The GRK 5/16 in. x 6 in. RSS Star Drive Washer Head Alternative Lag Screw (40 Pack) is a high-quality fastener designed for industrial use. With the brand's reputation for reliability and durability, these screws are guaranteed to provide a secure hold for various applications. The star drive style ensures easy and efficient installation, while the 6-inch length offers versatile options for various projects. Perfect for business and industrial use, this 40-pack of lag screws is a valuable addition to any toolkit.