Enhance your fastening applications with our Hex Washer Head Screws. Crafted from durable steel and coated in zinc for added protection, these screws feature a 5/16-18 thread size and a Type F tip, ensuring efficient and secure attachment. The ASME B18.6.3 specification guarantees high quality, while the hex washer head design allows for easy installation with a wrench or socket. With a length of .625 inches, these screws are versatile and perfect for various industrial and construction projects. Rest assured, our screws are compliant with RoHS regulations, making them an environmentally friendly choice. Elevate your fastening solutions with these reliable and versatile screws.