Enhance your assembly process with our high-quality Sems Machine Screw. Designed to meet ASME B18.13 specifications, this stainless steel screw features a 4-40 thread size, perfect for secure fastening. The included Square Conical Washer ensures optimal grip and stability, while the Pan head and Phillips drive type make installation a breeze. With a length of .625 inches, it's versatile for a variety of applications. Rest assured, this product is RoHS compliant, meeting environmental standards without compromising on performance. Elevate your hardware lineup with this essential component.