The Truss Head Machine Screw, a reliable fastening solution for various applications. This high-quality screw, made of durable steel with a zinc finish, guarantees robust performance and corrosion resistance. Featuring a Phillips drive type for easy installation, it's designed to meet ASME B18.6.3 standards for optimal quality. With a thread size of 1/4-20 and a length of .3125 inches, it's perfect for securely fastening components together. Rest assured, this screw is also RoHS compliant, making it an environmentally friendly choice. Trust in its precision engineering for all your fastening needs.