National Hardware Zinc Chain Bolt features a durable steel case and a strike made from die-cast zinc, ensuring long-lasting strength and reliability. The bolt itself is crafted from malleable iron with a 5/8" square reversible design, providing versatility for various applications. Measuring 3 inches in length, this bolt comes complete with screws, a bolt rim, and mortise strikes for easy installation. The product is visually packed and finished with a zinc coating for added protection against corrosion. Model Number: N150-771