Enhance your machinery with this high-quality Sems Machine Screw. Designed to perfection with ASME B18.13 specifications, it guarantees optimal performance. Crafted from durable steel and coated with zinc for longevity, this screw is a reliable choice for various applications. The 4-40 thread size ensures a secure fit, while the 1.5-inch length offers versatility. Featuring an external tooth washer, pan head, and Phillips drive type, installation is effortless. Rest assured, it meets RoHS compliance standards, making it a sustainable and eco-friendly option. Upgrade your equipment with this essential component.