This hollow lock screw from Profax-Lenco is designed for precision and reliability in various applications. Measuring 5/16-18 in diameter and 4.75 inches in length, it is crafted to provide a secure fastening solution while maintaining a lightweight profile at just 0.01 lb. Made in the United States, this component is ideal for those seeking quality and durability in their projects, with dimensions that ensure it fits seamlessly into your assembly requirements.