Enhance assembly efficiency with our Sems Machine Screw. This high-quality fastener features a 1/4-20 thread size and a durable steel construction with a corrosion-resistant zinc finish. The ASME B18.13 specification ensures reliable performance, while the included external tooth washer provides secure fastening. With a convenient 1-inch length and easy-to-use hex head, this screw is perfect for a wide range of applications. Rest assured, it complies with RoHS standards for environmental responsibility. Upgrade your hardware arsenal with this essential component for seamless installations.