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CHU3G110PB
Union 3G110 5 Detainer Deadlock 73mm Brass (Chubb At Heart)
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Union (Chubb At Heart) B-3G110 73mm Brass 5 Detainer Deadlock Door Lock 2K
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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£190.75
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£158.96
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Description
Union 3G110 5 Detainer Deadlock 73mm Brass (Chubb At Heart)
When it comes to securing your property, the choice of hardware is the most critical decision you will make. The Union 3G110 5 Detainer Deadlock 73mm Brass (Chubb At Heart) represents the gold standard in mechanical security for timber doors. Engineered with a heritage that prioritises resilience and longevity, this mortice lock offers peace of mind for both residential and commercial applications.
This sophisticated locking mechanism utilises a five detainer system. Unlike traditional lever locks that can be vulnerable to manipulation, this detainer design provides a significantly higher number of unique key combinations. This makes unauthorised entry through lock picking or impressioning techniques virtually impossible for the average intruder.
Robust Mechanical Physics and Structural Integrity
The physical forces acting upon a door lock during an attempted break-in are immense. When a physical attack occurs, the lock must resist shear stress, torque, and direct impact. This item is built to withstand such extreme conditions through its heavy-duty steel case and brass components. The brass deadbolt is reinforced with hardened steel rollers, which are specifically designed to rotate when subjected to a hacksaw blade. This clever mechanical feature prevents the saw from finding a static purchase, effectively neutralising attempts to cut through the bolt.
Furthermore, the internal mechanism is shielded against drilling. The anti-drill security features are integrated deep within the casing to protect the internal detainer stack from impact damage. By maintaining structural rigidity under pressure, this hardware prevents the component flex that often leads to failure in inferior products. You can rely on this lock to remain steadfast even when the physical security of your door is tested by external force.
Operational Workflow and User Experience
Operating this lock is a seamless experience that highlights the precision engineering involved in its construction. To engage the deadbolt, the user inserts one of the two supplied keys into the escutcheon. As the key turns, it interacts with the internal detainer discs, aligning them to allow the bolt to throw or retract. This movement is smooth and deliberate, providing tactile feedback that confirms the lock has engaged fully.
- The user inserts the key into the lock cylinder from either the internal or external side of the door.
- A smooth rotation of the key aligns the five internal detainers to the correct position.
- The hardened brass deadbolt moves with a firm 14mm throw, securing the door firmly into the striking plate.
- Once fully extended, the lock provides a high level of resistance against lateral pressure applied to the door leaf.
- The key can be removed only when the bolt is in a fully locked or fully unlocked position, preventing accidental partial engagement.
This sequence ensures that the user is never left guessing whether their property is secure. The mechanical precision reduces the risk of the key jamming or the mechanism feeling gritty over time, ensuring a reliable performance that stands the test of daily use.
Ergonomics, Safety, and Compliance
Security hardware must also be considered in the context of safety and ease of use. This Union 3G110 5 Detainer Deadlock 73mm Brass (Chubb At Heart) is designed to be accessible, reducing the physical effort required to secure a heavy timber door. The smooth operation prevents strain on the user, which is particularly important in high-traffic environments or for individuals with limited dexterity. By ensuring the lock operates with minimal friction, it prevents the common operational errors that occur when users struggle to force a stiff or poorly aligned mechanism.
Compliance is another area where this model excels. It has been assessed under EN 1634-1 standards, confirming its suitability for use on 60 minute timber fire doors. In the event of an emergency, the reliability of the locking mechanism is paramount. You can rest assured that this hardware meets the rigorous safety benchmarks required for fire door assemblies, protecting both your assets and the people within the building.
Commercial ROI and Long Term Value
Investing in high-quality door furniture is a classic example of long-term cost-saving through durability. Cheap locks often fail within a few years, leading to the added costs of locksmith call-outs, emergency repairs, and the potential loss of assets. By choosing this Union 3G110 5 Detainer Deadlock 73mm Brass (Chubb At Heart), you are opting for a 25-year guarantee that speaks volumes about the manufacturer's confidence in their craftsmanship.
The business case for this investment is clear. Because the unit is built to resist wear and environmental corrosion, the replacement cycles are significantly extended. This reduces the administrative and operational overheads associated with managing facility maintenance. When you factor in the protection it offers against theft, the value proposition of this lock becomes undeniable for any property owner looking to secure their premises for the long haul.
If you are not sure if this mortice lock is right for your requirements, please contact our friendly team today for expert guidance on your security hardware selection.
Technical Specifications
To assist with your installation, please review the technical parameters of this lock. These dimensions ensure that your door is prepared correctly for a flush, secure fit.
| Feature | Specification |
|---|---|
| Case Size | 73mm (3 inches) |
| Backset | 44mm |
| Faceplate Dimensions | 178mm x 25mm |
| Case Height | 122mm |
| Bolt Throw | 14mm |
| Finish | Polished brass forend with silver powder coat case |
| Material | Steel case with brass deadbolt and hardened steel rollers |
| Compliance | EN 1634-1 assessed for 60 minute fire doors |
| Guarantee | 25 Year Manufacturer Guarantee |
The combination of a polished brass finish and a robust steel internal structure means this lock is as aesthetically pleasing as it is secure. It complements traditional and modern timber doors alike, providing a professional look that enhances the overall appearance of your entryway. Whether you are upgrading an existing office door or securing a new residential installation, this unit provides the perfect balance of form and function.
We understand that selecting the right lock can be complex given the variety of door styles and security needs. Our team is dedicated to helping you make an informed choice. If you require further assistance or have specific questions about the installation process, please do not hesitate to reach out to us. Your security is our priority, and we are here to ensure you get the right hardware for your specific application.
By choosing this premium deadbolt, you are not just purchasing a piece of hardware. You are investing in a proven security solution that has been refined over years of engineering excellence. Secure your doors today with the peace of mind that comes from using industry-leading protection.
Specification
| Manufacturer | Union |
|---|---|
| Dimensions | 122 (H) x 73 (D) |
| Guarantee | 25 Year |
| Lock Type | Mortice Deadlock |
| Lock Operation | Lever |
| Lock Backset | 44mm |
| Faceplate Width | 25mm |
| Environmental Suitability | All |
| Mechanism | Dead Lock |
| Door Material Suitability | Wood |
| Max Door Thickness (mm) | 50 |
| Forend Finish | Polished Brass |