The TEK SCREW HEX WASHER HD 5/16" X 1" is engineered for reliable performance in heavy-duty applications. Made from high-quality steel, this screw features a hex washer head that ensures a tight fit and optimal load distribution. Its self-drilling design allows for quick installation without the need for pre-drilling, making it suitable for both metal and wood projects. With a length of 1 inch and a diameter of 5/16 inch, this screw is perfect for a wide range of industrial and automotive fastening needs.