Mending plate repairs or strengthens joints in wooden furniture, picture frames, shelving and many other household connections.These metal connectors are available in straight, T-shaped, flat L-shaped and bent L-shaped designs.Regardless of the shape, mending plates are pre-drilled and countersunk for use with flat head screws. This allows flat-head screws to be screwed down flush with the surface of the plate, thus, minimizing the total thickness of the connection paraphernalia.