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Yale Deadlocking Nightlatch Review: Secure your front door when unattended?

Yale P-89-DMG-PB-60 Deadlocking Nightlatch, Automatic Deadlock, Dark Metallic Finish/Brass Cylinder, High Security, Outdoor Lock, Front Door Latch
4.6
[Deadlock Operation]  Key-operated external deadlock secures property when left unattended for enhanced peace of mind.
[Inside Lever Handle]  Convenient internal lever for easy, quick locking and unlocking from inside the property.
[Internal Snib Button]  Engage deadlock or temporarily hold back latch bolt for flexible privacy control.
[Yale Rim Cylinder]  Included Yale rim cylinder ensures reliable keyed access using standard security components.
[Two Supplied Keys]  Comes with two Yale keys and a fixing pack for immediate installation and use.
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Home improvement hardware that locks from the outside by key while allowing simple internal operation. Confidence for homeowners who leave properties unattended comes from the assurance of robust mechanical locking, shown by Yale Deadlocking Nightlatch. Is the straightforward mechanical approach the right fit for your front door needs?

⚡ At a Glance
  • Locking Mechanism: Deadlock operated by key from outside, with lever handle operation and an internal snib for control
  • Best for: Homeowners securing a front door when the property may be left unattended for extended periods
  • Not ideal for: Situations that require electronic or hands-free locking solutions

Deadlock is operated by a key from the outside while a lever handle operates the lock from inside. Supplied with a Yale rim cylinder, two Yale keys and a fixing pack.


Secure external locking - With key-operated deadlock

Deadlock is engaged by turning a key from the outside, activating the lock's deadlocking function. The description specifies key operation from outside and highlights suitability when the property is left unattended.

Provides a clear security step for times when nobody is home, reducing the likelihood of unauthorised external entry.

Easy internal exit - With lever handle operation

Lever handle allows the latch to be operated from inside the property without requiring a key. Internal operation is described as convenient for occupants.

Allows occupants to leave the property quickly and simply, useful for everyday use and straightforward in an emergency.

Flexible privacy control - With internal snib button

Internal snib button can engage the deadlock or temporarily hold back the latch bolt, as described in the product details. The snib provides selectable modes of latch behaviour.

Offers the choice between full security when needed or temporarily holding the latch for short-term access and privacy.

✨ The 4 Key Reasons for Yale Deadlocking Nightlatch
  1. Key-operated deadlock - Prevents external unlocking when property is left unattended
  2. Lever handle operation - Allows simple exit from inside without a key
  3. Internal snib button - Enables deadlock engagement or temporary latch hold-back for privacy
  4. Included rim cylinder and two keys - Comes with rim cylinder and two keys for immediate fitting
📋 Technical Details at a Glance
  • Category: Home Improvement
  • Operation: Deadlock operated by key from outside
  • Lock type: Deadlocking nightlatch
  • Handle type: Lever handle for internal operation
  • Internal control: Snib button to engage deadlock or hold back latch bolt
❓ Frequently Asked Questions

Q: How is the lock operated from outside?

A: The deadlock is operated by a key from the outside, using the supplied Yale rim cylinder.

Q: Can the door be opened from inside without a key?

A: Yes, a lever handle operates the latch from inside, allowing exit without using a key.

Q: What comes in the box with the lock?

A: Two Yale keys and a fixing pack are supplied, and the unit includes a Yale rim cylinder.

🏆 Our Verdict

Suitable for homeowners who want straightforward mechanical security for a front door, especially when a property is left unattended. Key-operated deadlocking with a lever handle and internal snib, plus an included rim cylinder and two keys, is the main selling point. Durable mechanical construction and supplied fittings make it a practical long-term security choice.