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LEG5511SS
TWH (Legge Replacement) 5511 51mm SS 5 Lever Deadlock Door Lock
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5511 51mm Ss 5Lever Deadlock Door Lock
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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£86.38
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£71.98
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Description
TWH (Legge Replacement) 5511 51mm SS 5 Lever Deadlock Door Lock
Securing your premises requires hardware that balances mechanical precision with long term resilience. The TWH (Legge Replacement) 5511 51mm SS 5 Lever Deadlock Door Lock serves as an essential upgrade for those seeking a reliable security solution. Engineered to meet the exacting standards of modern door hardware, this model offers a seamless replacement for legacy systems while providing enhanced protection against unauthorised entry.
When selecting a locking mechanism, the internal architecture determines the lifespan and reliability of the unit. This item features a five lever mechanism that provides a high level of key variation, making it significantly harder to pick compared to standard three lever alternatives. The stainless steel finish not only provides a sleek aesthetic that complements various door styles but also offers superior resistance to environmental corrosion.
Understanding Mechanical Physics and Operational Force
The internal mechanics of this deadlock rely on the precise interaction between the key bitting and the internal levers. When the key is inserted and turned, it lifts the levers to a specific height that aligns with the gate in the bolt. This alignment allows the bolt to retract or extend smoothly without unnecessary friction or internal binding.
The structural integrity of this item is designed to withstand significant lateral force. Because the bolt is constructed from hardened materials, it resists the shearing forces that often occur during forced entry attempts. The casing is reinforced to maintain its shape under pressure, preventing the internal mechanism from shifting or flexing when the door is subjected to physical impact.
The Operational Workflow for Users
- The user begins by inserting the key fully into the cylinder to ensure all five levers are engaged correctly.
- Once the key is fully seated, the user rotates the key clockwise or anti-clockwise depending on the door handing.
- This rotation causes the cam to move the deadbolt into the strike plate, providing a solid physical barrier.
- The user then removes the key only when the bolt is in the fully extended or fully retracted position to ensure the mechanism remains locked.
- Regular operation ensures that the internal springs and levers remain lubricated and free from the accumulation of dust or debris that could impede movement over time.
Ergonomic Health, Safety and Compliance
Choosing the right hardware is about more than just security, as it also relates to the comfort and safety of the individuals who interact with the door daily. This TWH (Legge Replacement) 5511 51mm SS 5 Lever Deadlock Door Lock has been designed to operate with a smooth, consistent torque. This reduces the amount of physical force required by the user, making it an excellent choice for buildings where accessibility is a priority.
By ensuring that the locking action is fluid, the risk of repetitive strain or awkward wrist movements during operation is significantly minimised. Furthermore, this hardware adheres to high standards of manufacturing excellence. Compliance with these standards ensures that the product performs reliably during emergency situations, allowing for quick exit or secure lockdown as required by building safety regulations.
Pro Tip Always ensure the strike plate is correctly aligned with the deadlock bolt during installation. Proper alignment is the single most important factor in preventing mechanical wear and ensuring that the lock operates with minimal resistance throughout its lifespan.
Commercial ROI and Long Term Value
Investing in high quality door hardware provides a clear return on investment for property managers and business owners. When you install a robust 5 lever deadlock, you are effectively reducing the frequency of maintenance calls and hardware replacements. Lower quality alternatives often suffer from internal spring fatigue or material degradation, which can lead to emergency lockout situations and costly locksmith fees.
By selecting this durable model, you are choosing a component that is built to endure high frequency traffic environments. The stainless steel finish is particularly valuable in commercial settings, as it maintains its appearance and structural properties even in humid or high traffic areas. This reduction in administrative overhead and maintenance frequency allows you to focus your resources on other critical areas of facility management.
Technical Specifications
The following table outlines the precise technical parameters of this security hardware. These specifications are designed to assist installers and facility managers in verifying compatibility with existing door frames and current security requirements.
| Feature | Specification |
|---|---|
| Lock Type | 5 Lever Deadlock |
| Backset | 51mm |
| Material | Stainless Steel |
| Mechanism | Five Lever Internal System |
| Compatibility | Legge Replacement |
| Finish | Satin Stainless Steel |
| Durability | High Resistance to Corrosion |
Why Choose This Security Hardware
The TWH (Legge Replacement) 5511 51mm SS 5 Lever Deadlock Door Lock represents a commitment to both security and engineering excellence. Its design is the result of years of refinement in the locksmithing industry, ensuring that every component serves a specific purpose in protecting your property. Whether you are upgrading a single door in a residential setting or outfitting an entire commercial office block, the reliability of this unit remains unmatched.
We encourage you to consider the long term benefits of upgrading your legacy systems. By replacing older, worn out locks with this modern, high precision unit, you take a proactive step in enhancing the overall security posture of your premises. The peace of mind that comes with knowing your doors are secured by a robust, five lever mechanism is invaluable. Ensure your doors are equipped with the best hardware available by choosing this trusted solution today.
If you require further assistance with installation or need to clarify compatibility with specific door types, our team at Doorfit is always here to provide expert guidance. We understand the complexities of door hardware and are dedicated to ensuring you find the exact fit for your requirements. Secure your space with confidence and benefit from the lasting durability of this premium stainless steel deadlock.
Specification
| Manufacturer | TWH |
|---|---|
| Dimensions | 108 (H) x 51 (D) |
| Guarantee | 1 Year |
| Lock Type | Mortice Deadlock |
| Lock Operation | Lever |
| Lock Backset | 35mm |
| Follower Size (mm) | N/A |
| Faceplate Width | 25mm |
| Environmental Suitability | All |
| Mechanism | Dead Lock |
| Door Material Suitability | Wood |
| Max Door Thickness (mm) | 50 |
| Forend Finish | Stainless Steel |