National Hardware 1.7" x 1.5" Black Heavy Duty Corner Brace is designed to reinforce 90-degree angles by securing the brace to the inside or outside of the corner. This heavy-duty corner brace features for a 5/16 inch bolt or two nails per side, with a 45-degree hole pattern that makes installation quick and easy. Its black powder coat finish enhances weather resistance, making it suitable for various applications. Please note that the safe working load depends on the specific application and fasteners used, so consulting with design professionals is to ensure proper use and safety. Model Number: N351-482