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YAL89SCPDMG
Yale 89 Deadlocking Nightlatch DMG/SC
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Yale 89 60Mm Met Grey Scp Night Latch door lock with 2 keys
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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£49.18
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£40.98
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Description
Reliable Front Door Protection with the Yale 89 Deadlocking Nightlatch DMG/SC
Securing an external timber door requires hardware that balances robust daily performance with straightforward operation. Traditional rim locks often present a vulnerability if an intruder breaks an adjacent glass panel or slips a tool through the letterbox, because a standard internal handle can simply be pulled to open the door. The Yale 89 Deadlocking Nightlatch DMG/SC overcomes this common domestic security risk by introducing an ingenious reverse turn deadlock function. When you leave your home, a quick turn of the key in the opposite direction completely deadlocks the internal lever, ensuring nobody can exit or enter by manipulating the interior latch handle.
Manufactured with a durable Dark Metallic Grey body and complemented by a crisp Satin Chrome cylinder, this surface mounted unit provides high grade domestic physical security without compromising the kerbside appearance of your entrance. Whether you are replacing a worn nightlatch on a period property or outfitting a modern wooden entrance door, this unit pairs practical usability with dependable physical resistance. Supported by Doorfit, it represents an outstanding choice for residential homeowners, landlords, and property managers who want peace of mind without complicated upkeep.
Step by Step Functionality and Everyday Security Management
Stage 1 External Locking and Reverse Key Deadlocking
As you close the door from the outside, the latch automatically shoots home into the strike plate to keep the entryway shut. By giving the outside key a reverse turn, you engage the internal deadlock mechanism. This immobilises the inside lever handle completely, making it impossible for intruders to open the latch via the letterbox or nearby glazed side panels.
Stage 2 Interior Snib Control and Daytime Latch Holdback
The integrated snib button on the interior casing provides convenient latch management throughout the day. Sliding the snib while the latch is fully retracted holds the bevelled bolt inside the lock casing, preventing accidental lockouts during busy times such as unloading groceries, garden maintenance, or frequent family entry.
Stage 3 Overnight Deadlocking from the Inside
When your household retires for the evening, pushing the snib button while the door is shut deadlocks the latch in the extended position. This prevents the lock from being picked, slipped with plastic cards, or retracted from the exterior keyway, offering reliable overnight security for the whole family.
Stage 4 Standard Lever Egress and Key Access
Under normal operating conditions with the deadlock disengaged, stepping out is smooth and effortless. Simply pulling the ergonomic interior lever draws back the latch bolt in one fluid motion. Entering from outside requires only the supplied Yale 1109 exterior rim cylinder key.
Key Features and Practical Benefits
The Yale 89 Deadlocking Nightlatch DMG/SC brings together decades of lock engineering to solve day to day security challenges on residential external timber doors. Its smart features safeguard your entranceway while retaining the convenient rim latch operation homeowners expect.
- Effective Anti Slip Deadlocking Action Prevents classic credit card slipping techniques by locking the latch bolt rigidly within the strike box.
- Letterbox Attack Resistance The reverse key turn immobilises the interior handle, preventing thieves from reaching in with hooked wires or reaching through broken panels.
- Versatile Snib Functionality Gives you complete freedom to temporarily hold the latch bolt inside the lock body or secure it firmly in the extended position.
- Supplied with Yale 1109 External Rim Cylinder Includes an industry recognised cylinder assembly along with two durable cut keys ready for immediate use.
- Universal Door Handing Engineered to suit both inward opening left handed and right handed door configurations without complex internal reassembly.
- Distinctive Dual Finish Features a resilient Dark Metallic Grey coated main body casing paired with a modern Satin Chrome cylinder face.
Detailed Specifications
Installation Guidance and Best Practices
Installing the lock is a straightforward project for confident DIY enthusiasts and professional carpenters alike. The standard 60mm backset is the most widespread dimension across UK homes, making this model an ideal direct replacement for older, standard nightlatches. When replacing an existing lock, check that the existing cylinder hole sits exactly 60mm from the door edge so the new mechanism aligns seamlessly with your door face.
For fresh installations, drill a 32mm hole through the door stile at your chosen height to accommodate the Yale 1109 rim cylinder. Trim the connecting flat drive bar to the specified length according to your timber door thickness, secure the internal mounting plate with the supplied fixing bolts, and fit the main lock case flush to the interior face. Always take time to chisel the strike box neatly into the door frame so the latch bolt fully extends and deadlocks smoothly every time the door shuts.
Doorfit Recommendation for External Entrances
While this deadlocking rim latch delivers exceptional day to day security, standard UK insurance policies and building advice recommend pairing any nightlatch on a final timber exit door with a British Standard BS 3621 approved five lever mortice deadlock. This classic dual lock pairing delivers maximum resistance against forced entry while maintaining the practical convenience of a rim nightlatch for daytime entry.
Not Sure if This Nightlatch Suits Your Entrance Door?
Selecting the correct backset, handing, and security grade is essential to getting your installation right. If you need advice on door measurements or matching hardware, our experienced team is here to help you make the right choice.
Contact Our TeamSpecification
| Manufacturer | Yale |
|---|---|
| Finish | Dark Grey |
| Dimensions | 70 (H) x 92 (D) |
| Guarantee | 2 Year |
| Lock Type | Rim Nightlatch |
| Lock Operation | Rim Cylinder |
| Lock Backset | 60mm |
| Follower Size (mm) | N/A |
| Faceplate Width | N/A |
| Environmental Suitability | All |
| Mechanism | Latch |
| Door Material Suitability | Wood |
| Max Door Thickness (mm) | 57 |
| Forend Finish | N/A |