Yale 84 40mm Non Deadlocking Nightlatch DMG/PB
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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Description
Yale 84 40mm Non Deadlocking Nightlatch DMG/PB
When you focus on securing your property, the choice of hardware becomes a critical decision that balances physical safety with your daily convenience. The Yale 84 40mm Non Deadlocking Nightlatch DMG/PB represents a hallmark of traditional security engineering designed for those who prioritise long term reliability and effortless access. This specific model offers a sophisticated aesthetic blend, featuring a robust Dark Metallic Grey body paired with a timeless Polished Brass cylinder to complement various door styles and finishes.
Investing in high quality door hardware is not merely about preventing unauthorised entry. It is about creating a seamless point of transition for you and your family. This unit has been engineered to provide consistent performance across its lifespan, ensuring that your primary entry point remains both secure and accessible whenever you need it. By choosing this hardware, you are selecting a product backed by a brand that has defined the standards of domestic security for generations.
The Mechanics of Reliable Security
Understanding the mechanical physics behind this nightlatch helps to appreciate why it remains a preferred choice for residential properties. The internal spring mechanism is calibrated to provide just the right amount of tension, ensuring the latch bolt engages with the strike plate smoothly and securely every time the door closes. This precise calibration prevents the nuisance of a rattling door while reducing the mechanical stress on the internal components.
The structural integrity of the casing is designed to resist the common forces applied during daily use, such as the repeated impact of the latch against the frame. By using high grade materials, the manufacturer ensures that the internal lever mechanisms do not succumb to metal fatigue or excessive wear over time. This durability is essential for maintaining the alignment of the locking components, which in turn preserves the overall security integrity of your door.
Pro Tip Maintaining your hardware is essential for longevity. Simply ensure the latch bolt is kept free of debris and lightly lubricated once a year to keep the mechanical action smooth and responsive.
Operational Workflow and User Experience
Operating this hardware is a straightforward process designed for maximum efficiency. From the exterior, the included Yale 1109 cylinder allows for quick and smooth key entry, providing a reliable mechanical interface that resists jamming or sticking even in colder climates. Once you turn the key, the internal mechanism retracts the latch with minimal resistance, allowing the door to open effortlessly.
On the interior side, the lever handle provides an immediate exit path. You simply depress the handle to withdraw the latch, ensuring that you can exit your property quickly in normal circumstances. The inclusion of a snib button adds an extra layer of operational control. By engaging the snib, you can hold the latch in a withdrawn position, which is particularly useful when you need to move items in and out of the house without the door locking behind you. Alternatively, the snib can be used to deadlock the latch internally, preventing the lock from being opened by a key from the outside, which offers an added sense of privacy and control during the night.
Ergonomic Benefits and Safety Compliance
Ergonomics play a vital role in door hardware design, especially for users who may have limited mobility or strength. The lever action of this nightlatch is designed to be easily operated with a simple downward motion, requiring minimal force. This reduces physical strain on the hand and wrist, making it a safer option for all members of the household. By ensuring the lock operates smoothly, you also reduce the risk of becoming locked out due to mechanical failure or operator error.
In terms of safety, the design ensures that a swift exit is always possible from the inside. This is a crucial consideration for fire safety and emergency evacuations. By opting for a non-deadlocking nightlatch, you ensure that the door remains under your control while providing a fail-safe way to leave the premises without searching for keys under pressure. This combination of security and ease of use is what sets this product apart in a competitive market.
Commercial ROI and Long Term Value
While the initial cost of premium hardware might seem higher than budget alternatives, the long term value is significant. High quality locks like this 40mm nightlatch are built to last for many years without requiring frequent maintenance or replacement. This durability protects your investment by minimising the need for locksmith services or hardware repairs. When you consider the cost of replacing inferior locks that fail after only a few months, the financial logic of choosing a reputable brand becomes clear.
Furthermore, protecting your home or office from unauthorised access is an essential aspect of asset management. Secure hardware serves as a deterrent to opportunistic intruders, potentially reducing your insurance premiums and providing peace of mind. By reducing administrative overheads associated with security maintenance, this hardware provides a tangible return on investment for any property owner or facility manager.
Suitable Applications and Versatility
This nightlatch is highly versatile and fits a wide range of door types. Whether you are upgrading an older property or installing new doors in a modern home, the 40mm backset is a standard size that integrates easily into most timber door frames. The design is suitable for both left and right handed doors, providing flexibility during the installation process. It is specifically designed for inward opening doors with a thickness of up to 57mm, making it an excellent choice for front doors and secondary entrance points alike.
- The snib button allows you to easily deadlock or hold back the latch as required.
- The lock is easily secured by the snib button internally, which makes the unit inoperable by key or handle from the outside.
- Each unit comes supplied with a Yale 1109 cylinder for immediate installation.
- You receive two keys with every unit to ensure you have a spare for family or emergency use.
- The design is perfectly suitable for both left and right handed doors.
- It works seamlessly with inward opening doors that have a thickness of up to 57mm.
- Key operation from the outside is smooth and reliable for daily access.
- The lever handle operation from the inside provides a quick and intuitive exit.
- You can use the snib function to hold the latch in a locked or withdrawn position for maximum versatility.
- This product is backed by a 2 year guarantee for your long term peace of mind.
Technical Specifications
| Feature | Specification |
|---|---|
| Product Name | Yale 84 40mm Non Deadlocking Nightlatch DMG/PB |
| Backset Size | 40mm |
| Lock Type | Non-Deadlocking Nightlatch |
| Cylinder Included | Yale 1109 |
| Keys Supplied | 2 |
| Door Compatibility | Left or Right Handed, Inward Opening |
| Max Door Thickness | 57mm |
| Body Finish | Dark Metallic Grey |
| Cylinder Finish | Polished Brass |
| Security Level | Standard Security |
| Guarantee | 2 Year Guarantee |
By reviewing these specifications, you can confirm that this hardware is the correct match for your door setup. The combination of the 40mm backset and the robust 1109 cylinder provides a balanced security solution that is both effective and easy to install. If you have any specific concerns regarding door thickness or frame compatibility, our team is always ready to assist you in making the right choice.
Ultimately, this Yale 84 40mm Non Deadlocking Nightlatch DMG/PB is a reliable, high performance security solution that meets the demands of modern living. Its ease of use, combined with the trusted reputation of the manufacturer, makes it an ideal addition to your property security strategy. Whether you are looking to replace an aging lock or secure a new door, this product provides the peace of mind you deserve. Choose quality, choose reliability, and choose the Yale 84 40mm Non Deadlocking Nightlatch DMG/PB for your next home improvement project.
Specification
| Manufacturer | Yale |
|---|---|
| Finish | Dark Grey |
| Dimensions | 70 (H) x 62 (D) |
| Guarantee | 2 Year |
| Lock Type | Rim Nightlatch |
| Lock Operation | Rim Cylinder |
| Lock Backset | 40mm |
| 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 |

