This 6061 aluminum angle measures 1/8 inch thick with 1-1/4 inch legs and is 4 feet long. It is made from 6061-T6 aluminum alloy with a standard mill finish. 6061-T6 is a versatile aluminum alloy known for its good strength, excellent corrosion resistance, and good machinability. This equal-leg angle is commonly used in structural applications, fabrication shops, maintenance departments, and DIY projects where a strong yet lightweight L-shaped aluminum angle is required for frames, supports, brackets, trim, or custom components.