Yale PM552 5 Lever Brass Mortice 3 Inch Deadlock

Yale five lever mortice deadlock is a high security lock that is ideal for external wooden doors and the single dead bolt is locked from either side of the door using the key. The five lever deadlock features a hardened steel lock case with anti-drill plates to protect critical components. A strong 20 mm anti-saw dead bolt with hardened steel rollers provides resistance from attack by intruders with a hack saw. For additional protection the boxed steel strike plate that is rebated into the door frame provides extra resistance against forced attack.