The Truss Head Machine Screw, a durable and versatile fastening solution for a variety of applications. Constructed from high-quality steel with a protective zinc coating, this screw ensures long-lasting performance and corrosion resistance. Featuring a 1/4-20 thread size and Phillips drive type, it offers secure and efficient installation. With a length of 3.125 inches, it's ideal for projects requiring a longer fastener. Compliant with RoHS regulations, you can trust in its environmental responsibility. Upgrade your toolkit with this essential component for all your fastening needs.