Description:

Use with metal-framed sliding doors and older style, metal-framed sliding windows. Note: these locks are for use on sliding patio doors and windows whose metal fins measure 1/4 inch or thinner. Each lock features a pair of counter thumb turn fasteners for adding a strong, sure hold. Heavy-duty cast-metal construction with tamper-resistant double thumb turn screws. This high security sliding patio door and window lock comes in a white-painted finish. Used on vertical and horizontal sliding windows as a secondary window lock. For use on 1/4 in. max. thick fins. White painted finish. Extruded aluminum construction with double thumbscrews (steel).