National Hardware 1155BC Series N351-499 Corner Brace, 6.8 in L, 3 in W, 3 in H, Steel, Powder-Coated, 1/BX

Used to reinforce a 90 deg angle through application on the inside. Slots for 1/2 in Carriage Bolt. Extra length on one leg gives extra reach to provide greater stability. Chamfered corners provide decorative look. Black powder coat finish for improved weather resistance.