The Sems Machine Screw is a reliable fastening solution, perfect for various applications. With its ASME B18.13 specification, you can trust in its quality and performance. Made of durable steel with a zinc finish coating, it offers corrosion resistance for long-lasting use. The external tooth washer ensures secure fastening, while the pan head and slotted drive type provide ease of installation. Measuring 0.3125 inches in length, it's suitable for a range of projects. Rest assured, this product is RoHS compliant, meeting environmental standards. Trust in the Sems Machine Screw for your fastening needs.