This 5/16"-9x6" hex lag screw is designed for heavy-duty applications requiring strong and durable fastening solutions. Made from low carbon steel, it offers a balance of strength and malleability, making it ideal for various construction projects. The zinc plating provides enhanced corrosion resistance, ensuring that the screw can withstand exposure to moisture and harsh environmental conditions. With a CR+3 coating, this screw offers additional protection and is suitable for both indoor and outdoor use. Whether you're securing wooden structures or other materials, this hex lag screw is a reliable choice for lasting performance.