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PAR-JHD72DL-SQ-SS60
Union HD72DL-S DDA 60mm Backset Euro Deadlock Satin
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Union HD72DL-S DDA 60mm Backset Euro Deadlock Satin with Square Forend BS EN 12209
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| 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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£18.80
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£15.67
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Description
Mortice Hardware Solutions
Union HD72DL-S DDA Euro Deadlock
Finding a lockcase that manages to survive the rigours of a busy public building requires careful selection of internal components and casing materials. This specific Euro profile deadlock is designed to support long-term operational integrity in high-frequency environments where usage is constant and professional supervision is minimal. It fits standard door preparations which allows maintenance teams to swap out old, tired hardware without needing to perform invasive carpentry work on the door itself.
The satin stainless steel finish provides a clean look that integrates well with various architectural styles, while the heavy-duty mild steel casing protects the internal movement from physical stress. Because this unit has undergone extensive cycle testing, building managers can feel confident that their doors will remain secure for many years without the need for frequent site visits or expensive replacement parts. It is a reliable choice for commercial doors where safety and smooth functionality are basic daily requirements.
60mm
BACKSET
72mm
CENTRES
BS EN 12209
STANDARD
3.5M
TEST CYCLES
Why Choose the Union HD72DL-S DDA 60mm Backset Euro Deadlock Satin
This lock provides a stable foundation for high-traffic door security through superior engineering and universal sizing standards.
Exceptional Cycle Longevity
The internal mechanism is built to endure over 3.5 million cycles of operation which far exceeds the baseline set by European regulations. This design choice results in fewer mechanical failures during the product lifecycle so that you save money on service calls. It stays fully operational even when doors are used constantly by the public every single day.
Equality Act Compliance
Designing buildings for accessibility is much easier when your hardware meets strict industry standards for inclusive use. By selecting this model you assist in fulfilling the requirements under the Equality Act. It ensures that your door access solutions are suitable for all individuals regardless of their physical abilities because the operation remains smooth and effortless.
Standardised Footprint Dimensions
Every lock in the HD72 range shares the exact same case dimensions which makes installation work much faster for joiners and maintenance staff. You can switch between different lock types without altering the door preparation. This saves significant labour time when you are performing building-wide upgrades or repairs on existing doors across a large commercial site.
Engineering Quality and Daily Performance
Precise manufacturing techniques produce a lockcase that moves with total consistency and resists common forms of wear.
Internal Mechanism Dynamics
The internal components are shaped to distribute physical pressure across the entire deadbolt area whenever it is locked. This reduces the risk of shearing or jamming under normal use conditions because the forces are balanced internally by the steel casing. The single-throw deadbolt provides a clear locking action that feels positive and secure to the user whenever they engage the key.
Because the internal spring system is calibrated for a specific amount of tension, you will find that the movement does not feel mushy or vague. Each rotation of the Euro cylinder moves the deadbolt through its full throw with consistent feedback. This quality of operation prevents the frustration often caused by cheaper, lighter-weight locks that fail to engage the keep cleanly in heavy wooden doors.
Surface Finish and Construction
The grade 304 satin stainless steel forend offers a high degree of protection against surface corrosion even in humid internal conditions. This material choice is popular because it hides minor scratches and scuffs that inevitably occur in high-traffic hallways. You get a professional aesthetic that remains visually consistent for the duration of the 15-year guarantee period.
The heavy-duty mild steel casing is finished with a silver protective coating which seals the unit against dust and debris from the door mortice. By keeping the working parts clean inside the casing, the lock continues to function without binding or excessive friction. It is a practical approach to hardware design that prioritises long-term reliability over unnecessary decorative flourishes that do not add value.
Installation and Operational Workflow
Follow these clear steps to achieve a perfectly aligned door lock installation that ensures smooth daily performance.
1
Preparation and Alignment
Begin by marking the centre line of the door edge and ensuring your mortice depth is consistent with the 90mm case depth. The two-piece forend design allows you to adjust the final placement with more flexibility. Use a sharp chisel to clean out the rebate so the forend sits perfectly flush with the timber edge for a professional finish.
2
Securing the Casing
Insert the lockcase into the mortice and secure it using the provided wood screws through the forend plate. Before you tighten the screws fully, ensure the lock is perpendicular to the door face. This alignment prevents the deadbolt from catching on the strike plate, which saves your staff from needing to perform time-consuming adjustments later on.
3
Cylinder and Furniture
Slide the Euro cylinder through the aperture until the cam is central. Secure the cylinder with the long retaining screw located on the door edge, then attach your door furniture using the 38mm bolt-through holes. Test the key rotation from both sides of the door to confirm the deadbolt travels freely without resistance before you finish the job.
Expert Installation and Care Tip
Always verify the strike plate gap before fully fixing your hardware, as a small clearance prevents the bolt from rubbing against the frame. A light wipe of the satin stainless steel faceplate with a clean, dry cloth removes any residual installation oil and keeps the finish looking sharp for your final handover.
Technical Specifications
| Feature | Rating / Standard | Practical Details |
|---|---|---|
| Backset | 60mm | Common size for most commercial doors |
| Centres | 72mm | Matches standard Euro cylinder spacing |
| Cycle Test | 3.5 Million | Extremely high frequency durability |
| Compliance | BS EN 12209 | Certified for fire and performance |
| Case Material | Mild Steel | Enclosed to prevent internal debris |
Longevity and Trade Reliability
This product represents a high-value investment for long-term facilities management due to its cycle testing and standard footprint. Choosing hardware that meets BS EN 12209 standards ensures that you maintain consistent security levels across all your interior doors for the life of the building.
Compatibility and Fitting Notes
Fire door compatibility is verified for timber doors up to 60 minutes and metal doors up to 240 minutes per Certifire approval.
The lock is fully reversible for doors hinged on either the left or right side of the frame with no internal mechanical changes required.
Ensure your chosen door furniture utilises 38mm bolt-through fixings to match the factory-pierced holes provided on the lockcase for maximum stability.
Specification
| Manufacturer | Union |
|---|---|
| Guarantee | 15 Year |
| Lock Type | Mortice Deadlock |
| Lock Operation | Euro Cylinder |
| Lock Backset | 60mm |
| Faceplate Width | 24mm |
| Forend Finish | Stainless Steel |