The LOCK WASHER SPLIT USS ZINC 5/16" GR 5 is crafted from high-quality steel and features a zinc plating for enhanced corrosion resistance. This washer is designed to provide a secure grip and prevent loosening in high-stress environments, making it ideal for automotive assemblies and industrial machinery. With a 5/16" diameter and Grade 5 strength, it ensures reliable performance under load, suitable for various fastening applications.