The Flat Head Socket Cap Screw, a versatile fastening solution for a variety of applications. This ASME B18.3 compliant screw features a 4-40 thread size, making it suitable for use in machinery, electronics, and more. Constructed from durable steel, it offers reliable strength and corrosion resistance. With a length of .3125 inches, it is ideal for securing components with precision. Rest assured, this screw is RoHS compliant, meeting strict environmental standards. Upgrade your fastening needs with this essential hardware component.