Flat Corner Brace Plate made of Metal, providing strong reinforcement to wood boxes, crates, chests, furniture, screens, windows etc. Easy Install: use the screwdriver to tighten the screw on it,easy and quick, Screw holes are countersunk design; The head of screw is not protruding after the screw has been screwed in. Wide Applications of furniture and hardware accessories for fastening chair, table, window, furniture, dresser, shelf, drawer, etc.