National 1217BC Square Corner Brace 2.4 In. x 3 In. x 1/8 In. is a heavy-duty square corner brace designed to reinforce 90-degree angles by being applied to either the inside or outside of the corner. Its square shape and multiple bolt slots on each side provide a greater area of stability, making it i for wider pieces of building materials. The brace features slots for 5/16 inch carriage bolts and chamfered corners that add a decorative touch. Finished with a black powder coat, it improved resistance to weather conditions. Please note, the safe working load depends on the specific application and fasteners used, so it is to consult with design professionals to ensure this product is suitable for your needs.