Used to strengthen a 90 degree angle by flat attachment to the side at a 45 degree angle. Clearance for 5/16" bolt or 2 nails per side. 45 degree hole pattern for nails provides easy installation option. Black powder coat finish for improved weather resistance. 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.