PrimeLine MP4034 TamperResistant Patio Door Lock in Extruded Aluminum with Hex Screw Pack of 2 2 Piece

Used as a secondary lock to prevent accidental opening by children, 1 inch wide lock fits over 1/4 inch maximum thick fins, Extruded aluminum, Includes hex lock set screw, For use on older metal framed sliding windows and doors, Please refer to the line art drawing for dimensions and compare with your needs before ordering