Zoo UK Architectural Stainless Steel 5 Lever Deadlock - Satin Stainless Steel 76mm (57mm Backset)

A Deadlock is ideally suited to interior and exterior doors, providing a high level of security. The lock is operated by one full turn of the key. This 5 Lever Deadlock provides an added level of security over a 3 Lever, however is not the same as a British Standard Deadlock. At least one British Standard Deadlock or Sash Lock should be used on an exterior door.