YALE 85 & 89 Deadlocking Nightlatch

The Yale 85 & 89 Deadlocking Nightlatches are highly reliable, high-security rim locks designed for timber doors. Suitable for both left and right-handed, inward-opening doors up to 57mm thick, these nightlatches offer robust protection against common bypass methods.

A standout feature of these locks is their deadlocking capability. The latch automatically deadlocks when the door is closed, and the internal handle can be deadlocked from the outside with a reverse turn of the key. This prevents unauthorized entry even if an intruder attempts to operate the handle through a letterbox. Additionally, the internal snib button allows you to deadlock the latch internally or hold it back to prevent accidental lockouts.

These nightlatches are available in multiple configurations. You can choose between a 40mm backset (Yale 85) for narrow stile doors or a 60mm backset (Yale 89) for standard doors. They are offered in a wide range of finishes, including Brasslux, Chrome Plated, Dull Metal Grey, Polished Brass, and Satin Chrome, with options for boxed or visi packaging, as well as case-only variants. Please select your preferred backset, finish, and packaging options from the selection below.

Technical Specifications

• Brand: Yale
• Backset: 40mm or 60mm (please choose from the options below)
• Door Thickness: Suitable for doors up to 57mm thick
• Cylinder System: Yale 5-pin (on variants supplied with cylinder)
• Case Finishes: Brasslux, Chrome Plated, Dull Metal Grey, or Satin Chrome (please choose from the options below)
• Cylinder Finishes: Chrome Plated, Polished Brass, or Satin Chrome (please choose from the options below)
• Packaging: Boxed or Visi (please choose from the options below)
• Keys Supplied: 2 keys (where cylinder is included)

Key Features

• Double Deadlocking: Reverse turn of the key from the outside deadlocks the internal handle for enhanced security against letterbox attacks.
• Internal Snib: Allows the latch to be held back or deadlocked internally to control access.
• Bump Resistant: Cylinder is designed to resist bumping attacks.
• Reversible Handing: Suitable for both left and right-handed inward-opening doors.
• 2-Year Guarantee: Covered by a 2-year manufacturer's guarantee.