National Hardware 5/16" x 2" x 3" Zinc Square U Bolt is a durable and reliable fastening solution designed to secure various products to rectangular wood and metal objects. This square U bolt is zinc plated for enhanced corrosion resistance and comes with a box pack that includes two hex nuts, all pre-assembled for convenience. Manufactured from sturdy steel wire with a zinc finish, it ensures long-lasting strength and stability for your projects. Plate and hex nuts are included to provide a complete fastening set. Model Number: N222-356