This 6061 aluminum round rod measures 3/8 inch in diameter and is 6 feet long. It is made from 6061-T6 aluminum alloy with a standard mill finish. 6061 aluminum is a versatile alloy known for its good strength, excellent corrosion resistance, and good machinability. This round bar stock is commonly used in machining applications, fabrication shops, structural projects, DIY builds, and general metalworking where lightweight yet strong aluminum rod is required for frames, supports, shafts, fittings, or custom components.