Enhance your fastening process with this Sems Machine Screw, a versatile and efficient solution for a wide range of applications. Made of durable steel with a zinc coating for added strength and corrosion resistance, this screw is designed to withstand tough environments. Featuring an external tooth washer for secure grip and a pan head with a Phillips drive for easy installation, it ensures reliable and efficient performance. With a thread size of 4-40 and a length of .6875 inches, it is suitable for various tasks. Compliant with ASME B18.13 standards and RoHS regulations, it guarantees quality and environmental responsibility. Upgrade your toolbox with this essential component.