Enhance your fastening tasks with our Sems Machine Screw, a durable and reliable solution for a variety of applications. Constructed from high-quality steel with a zinc finish coating, it offers both strength and corrosion resistance. The included Square Conical Washer ensures secure and stable assembly, while the Phillips drive type and Pan head design allow for easy installation. With a 4-40 thread size and a length of .4375 inches, this screw is perfect for a range of projects. Rest assured, it is RoHS compliant, making it an environmentally friendly choice. Elevate your hardware game with this essential component.