1217BC, 2.4" x 3" x 3/16", Black Powder Coated Steel Corner Brace, Used For Reinforcing 90 Degree Angles By Application To The Inside Or Outside Of The Corner, Square Shape & Multiple Bolt Slots Per Side Provide Greater Area Of Stability For Wider Pieces Of Building Materials, Chamfered Corners Provide Decorative Look, Available In 2 Thicknesses Of Material For Variety In Application Need, Boxed Loose.