National Catalog 1216BC heavy duty wide corner brace. Used for reinforcing 90 Deg angles by applying to the inside or outside of the corner. 1/2 In. Carriage bolt. Wider width provides greater area of stability for long intersections of building materials, larger bolt holes provide options for structural support. Angle is cut from rolled structural steel and provides greater reinforcement strength than if the steel was bent into shape. Meets ASTM A6. Black powder coat finish for improved weather resistance. Warning: The safe working load for this product depends upon the application and fasteners used. In order to reduce the risk of personal injury or property damage, consult with design professionals to determine if this product is appropriate for your application.