Yale PM560 British Standard 5 Lever Chrome 3 Inch Sash lock

British Standard security - Insurance Approved. Yale PM560 British Standard 5 Lever Chrome Sash lock is a high security lock that is ideal for external wooden doors, the latch bolt is operated by lever handles and the dead bolt can be locked from either side of the door using the key. Approved to British standard BS 3621:2007, Police Secure by Design and is recommended by insurance providers the highest level of certification currently available making them one of the best locks for wooden doors with handles.