National Hardware 1152BC Series N351-480 Corner Brace, 7-1/2 in L, 1-1/2 in W, 1.6 in H, Steel, 3/16 Thick Material

Used to reinforce a 90 deg angle through application on the inside. 1/2 in Dia holes. Extra length on one leg gives extra reach to provide greater stability. Black powder coat finish for improved weather resistance.