National Corner Brace 7.1 x 1.5 x 1/8 in. Black is a heavy-duty corner brace designed to reinforce 90-degree angles by attaching it to the inside or outside of the corner. Featuring slots for 5/16 inch carriage bolts, this brace is finished with a black powder coat that enhances its weather resistance, making it suitable for various applications. Please note that the safe working load depends on the specific application and the fasteners used, so consulting with design professionals is to ensure it meets your project requirements. Model Number: 1151BC