Enhance your machinery with this Sems Machine Screw, a reliable and efficient solution for your fastening needs. With a thread size of 4-40 and a sturdy steel construction, it offers durability and strength. The zinc finish coating not only adds a sleek look but also provides corrosion resistance for longevity. Featuring an external tooth washer and a pan head with a slotted drive type, it ensures secure and hassle-free installation. Measuring at .3125 inches in length, it is perfect for various applications. Rest assured, this product is compliant with RoHS regulations, making it a sustainable choice for your projects. Elevate your assembly process with this high-quality Sems Machine Screw.