The Grip-Rite 5/16 in. wire X 3-1/8 in. L Star Hex Washer Head Structural Screws come in 20-pack. They are ideal for a variety of outdoor applications. With a star hex washer head design, these screws are perfect for attaching metal to wood. The screws are also great for use in masonry and concrete. Made from durable material, these screws can last long.
