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SEC-ESPAG-500MM
Defender High Security Window Lock Model DLG0590S
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To Suit Rebate Size 520mm to 649mm c/w 2x 7.7mm Cams
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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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£13.08
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£10.90
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Description
Defender High Security Window Lock Model DLG0590S
Investing in the security of a building starts with the hardware installed on every opening. When it comes to residential and commercial window systems, the Defender High Security Window Lock Model DLG0590S stands out as a pinnacle of engineering excellence. This espagnolette locking system is meticulously designed to provide robust protection against forced entry while simplifying the installation process for professional joiners and window fabricators alike.
Security is not just a feature. It is a fundamental requirement in modern construction. This locking solution meets the rigorous PAS24 standards, formerly known as BS7950, which ensures that your windows can withstand deliberate physical attacks. Furthermore, it carries the prestigious Secured by Design status. This endorsement confirms that the product effectively deters potential intruders and contributes to a safer living or working environment.
Beyond its defensive capabilities, this model is celebrated for its efficiency. The engineering team behind the design recognised that traditional shootbolt systems often require excessive labor. By streamlining the internal mechanisms, this hardware offers a modern approach to fenestration security that saves time without compromising on physical integrity.
Advanced Engineering and Mechanical Physics
The operational success of this window lock relies on sophisticated mechanical principles. The gearbox acts as the heart of the system, translating the rotational motion of the handle into a linear force that drives the locking points into the frame. Unlike inferior systems that may suffer from metal fatigue or component flex, this hardware is constructed to distribute mechanical stress evenly across the espagnolette bar.
When an intruder attempts to apply leverage against a window, the physics of the locking mechanism must hold firm. This design ensures that the locking points maintain deep engagement with the keeps. The load bearing capacity of the hardened steel components prevents the hardware from twisting or shearing under significant external pressure. By maintaining structural rigidity, the device effectively neutralises the torque applied by common break in tools.
Simplified Installation Workflow
One of the primary benefits for professionals is the dramatic reduction in the time required for site preparation. Traditional window locks often demand intricate routing and bar cropping, which introduces the possibility of human error and material waste. This model eliminates the need for bar cropping or complex adjustments.
The installation workflow is remarkably intuitive. A technician simply prepares the sash profile for the lock body and sets the unit in place. Because there is no need for corner cleaning or specialized routing tools, the throughput of a production line increases significantly. By removing these friction points, fabricators can produce more units per hour, directly impacting the profitability of window manufacturing projects.
- The design incorporates cam rotation which allows for the simple adjustment of gasket compression.
- Engineers have eliminated the need for complex bar adjustments or manual cropping during the fitting phase.
- The streamlined architecture ensures that fewer screws and components are required for a complete installation.
- There is no requirement for additional routing, which keeps the window frame integrity intact during the build process.
Ergonomics and Operational Safety
Human interaction with security hardware should be smooth and predictable. Over time, poorly designed locks become stiff or difficult to engage, which may lead to users leaving windows unsecured. This high quality hardware ensures that the user interface remains fluid for years after the initial installation.
By minimising the physical effort needed to lock the window, the system reduces repetitive strain on the homeowner or building user. The cam rotation mechanism provides tactile feedback, confirming that the window is properly sealed. This is vital for maintaining airtightness and thermal efficiency, which reduces energy bills while keeping the indoor climate comfortable. Compliance with safety standards is not only about resistance to entry, it is also about ensuring that the product remains functional and reliable throughout its entire service life.
Pro Tip: Regularly checking your window components for debris ensures that the high performance locking mechanism continues to operate with the same smoothness as the day it was installed. This proactive maintenance significantly extends the operational lifespan of your window security hardware.
Commercial ROI and Long Term Value
Deciding to invest in premium security hardware is a strategic business move. While lower cost alternatives might seem attractive in the short term, they often lead to high failure rates and increased call backs for repairs. These hidden costs can quickly erode the initial savings achieved during the fabrication phase.
The Defender High Security Window Lock Model DLG0590S provides a superior return on investment by offering unmatched durability. The enhanced resistance to corrosion ensures that the metal surfaces remain protected against environmental oxidation, even in coastal or humid locations. By choosing a product that is designed for longevity, companies reduce the frequency of replacement cycles and safeguard their reputation for quality craftsmanship.
Key Technical Specifications
The engineering specifications of this item are designed to meet the highest industry standards for residential and light commercial security. The following table provides a breakdown of the core technical parameters.
| Specification | Detail |
|---|---|
| Security Standard | PAS24 and BS7950 compliant |
| Certification | Secured by Design Approved |
| Operation | Cam rotation for compression adjustment |
| Installation Style | No-crop bar technology |
| Corrosion Resistance | High level surface treatment |
| Primary Benefit | Reduced installation time and fewer parts |
Why Choose This Solution
When you select the Defender High Security Window Lock Model DLG0590S, you are choosing a system that respects the time of the installer and the safety of the end user. The absence of complex bar adjustment removes the frustration that usually accompanies large scale window fitting projects. Instead, the focus is placed on a clean, efficient, and robust installation that stands the test of time.
The corrosion resistant finish is a testament to the commitment to durability. Whether the window is installed in a new build property or used as a replacement in a renovation, this item provides a consistent level of performance. It effectively bridges the gap between high end security and accessible installation requirements. By choosing this hardware, you are investing in a product that combines physical strength with intelligent design.
We encourage you to consider the full lifecycle of your window installations. From the initial procurement of parts to the final client sign off, every detail matters. This locking system simplifies the process, guarantees security compliance, and ensures that the finished windows provide reliable protection for years to come. If you have questions about specific profiles or configuration requirements for your current project, our team is always here to assist with expert guidance on hardware selection.
Specification
| Finish | Satin Stainless |
|---|---|
| Forend Finish | Stainless Steel |
| Window Material Suitability | UPVC |
| Window Operation | Hinged |
| Faceplate Width | 16mm |
| Lock Backset | 22mm |
| Roller Height | 7.7mm |
| Gear Type | Centre |