Angle cleat, also known as a mending plate or corner brace, is a type of metal bracket used to join two pieces of wood or metal at a right angle. There are various synonyms for the term "angle cleat" depending on the country or industry used. Some common ones include angle bracket, corner bracket, corner plate, corner reinforcement, L bracket, T bracket, miter brace, corner connector, and corner iron. These terms may refer to slightly different designs or uses of the hardware, but all serve the same basic function of providing structural support and reinforcement at corners and joints.