1151BC, 5.1″, 1.5″ x 1/8″, Black Powder Coated Steel Corner Brace, Used For Reinforcing 90 Degree Angles By Application To The Inside Or Outside Of The Corner, Boxed Loose. 1151bc, 5.1″, 1.5″ x 1/8″, black powder coated steel corner brace, used for reinforcing 90 degree angles by application to the inside or outside of the corner.