Elevate your fastening solutions with our Truss Head Machine Screw. Designed for precision and efficiency, this screw features a Phillips drive type for easy installation. Constructed from durable steel and coated with zinc for enhanced corrosion resistance, it ensures long-lasting performance. Compliant with ASME B18.6.3 specifications, this screw guarantees quality and reliability. With a thread size of 4-40 and a length of .3125 inches, it is perfect for a variety of applications. Upgrade your hardware with this essential component.