Upgrade your construction projects with these high-performance structural screws, perfect for demanding applications requiring superior holding power. Each screw measures 5/16 inch in diameter and 3-1/8 inches in length, providing the ideal balance between strength and versatility for any heavy-duty task. Designed with a star round head, these screws ensure a secure fit, minimizing the risk of stripping while enhancing ease of use. Conveniently packaged in a set of 25, they are an essential addition to any professional toolbox.