Galvanized Steel Rectangle Bar ASTM A123 is a sturdy metal bar with a rectangular shape, coated in zinc to prevent rust and corrosion. It's commonly used in construction and manufacturing for framing and structural support due to its durability. Whether you're building a fence or a framework, this bar offers reliable strength and longevity. Meeting ASTM standards ensures it meets quality requirements, making it a practical choice for a wide range of projects needing dependable, long-lasting materials.