You may not see them on the surface, but carbon steel rods are all around us. They reinforce concrete, support roads, and have all kinds of applications in manufacturing. Their strength and machinability make them a top choice for machinists and construction workers. Choose from hex rods, centerless rods and more. Searching for more rods? Zoro has a wide selection of alloy steel rods, stainless steel rods and cast iron rods.