This 5/16" Open Hex Acorn Nut is made from high-quality nickel-plated brass, providing excellent corrosion resistance and durability. Its hex design allows for easy installation with standard tools, ensuring a secure fit for various applications. This nut is ideal for use in automotive, construction, and manufacturing settings, meeting industry standards for quality and performance. The nickel plating not only enhances its aesthetic appeal but also protects against wear and tear, making it a reliable choice for both professionals and DIY projects.