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Union HD72WC-S DDA 60mm Backset Bathroom Lock Satin
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Union HD72WC-S DDA 60mm Backset Bathroom Lock 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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£17.18
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Description
Mortice Locks
Union HD72WC S Bathroom Lock Satin
Architects and facility managers require reliable hardware solutions that handle the constant pressure of busy public facilities while maintaining high safety standards. This Union HD72WC-S bathroom lock provides an ideal response to these demands, offering a professional mechanism engineered to endure millions of operations in demanding commercial settings where doors often face misuse or heavy daily traffic. By choosing a component with this level of internal reinforcement, you reduce the long-term cost of maintenance and frequent door hardware replacements across your entire property portfolio.
The finish consists of a premium grade 304 satin stainless steel forend, which keeps your doors looking clean and professional even after years of continuous service. Because Union has designed this lock series with a consistent footprint, you can easily standardise your site hardware, which helps your maintenance team handle replacements and upgrades with much greater speed. This model is built for longevity, so you can focus on other aspects of building management while the internal components continue to function with consistent smoothness.
60mm
BACKSET
78mm
CENTRES
3.5M
CYCLE TESTED
BS EN 12209
STANDARD
Why Choose the Union HD72WC-S DDA 60mm Backset Bathroom Lock Satin?
This lock provides a highly durable solution for commercial bathroom privacy needs while meeting strict accessibility requirements.
Exceptional Cycle Life
The internal mechanism has undergone rigorous testing to exceed 3.5 million cycles, which represents a performance level fourteen times higher than standard industry requirements. This durability means that the lock will remain operational far longer than cheaper alternatives, effectively lowering your total cost of ownership and reducing the burden on your on-site maintenance teams.
DDA Compliance
Designers and contractors must adhere to accessibility guidelines for public spaces, and this lock assists in fulfilling duties required under the Equality Act. By incorporating features that align with BS8300 and Approved Document M, you provide accessible facilities that are easy for all individuals to operate, which helps improve the inclusive nature of your building.
Standardised Installation
The entire HD72 range shares an identical footprint, which simplifies the planning phase for new construction or refurbishment projects. Because every lock in the series uses the same case dimensions and hole centres, your team can prepare door preps with absolute confidence that the hardware will fit correctly every time, saving significant labour hours on site.
Reversible Latch Handing
You can quickly reverse the latch on-site without needing to dismantle the entire lock case, which provides a flexible solution for door configurations that change during construction. This adaptability allows your installers to manage left and right handed doors from the same stock, so you do not need to keep multiple variations of the same product.
Reduced Door Rattle
The integrated spindle grip technology and adjustable strike plate prevent the annoying rattling sensation that often occurs in doors with loose hardware. This refinement improves the tactile quality of your door furniture, which gives users a sense of quality and security every time they engage the lock mechanism during their daily activities inside your building.
Fire Door Compatibility
Safety remains a priority in all environments, and this lock features certification for use on 30 and 60 minute timber fire doors plus 240 minute metal fire doors. By installing hardware that carries the Certifire approval mark, you ensure that your building complies with fire safety legislation and keeps occupants protected in the event of an emergency.
Engineering Quality and Daily Performance
Union engineers have prioritised structural integrity to ensure that the internal components withstand heavy usage without failing or losing their smooth operational feel.
Internal Mechanism Mechanics
The core of this lock features a high-grade mild steel case which provides a solid housing for all moving parts, protecting them from debris or internal wear over long periods. The deadbolt is constructed from steel and finished with chrome plating, which provides the strength needed to resist physical force and the smooth surface required for easy engagement with the strike plate.
You will notice that the latch follower technology is designed to minimise friction between metal surfaces, which helps the handle return to the horizontal position consistently. This internal engineering ensures the door latch engages firmly into the frame, creating a secure closure that withstands the high frequency of use typical of busy public washrooms or office facilities.
Weather Resistance and Finish
Your exterior aesthetics are protected by a grade 304 satin stainless steel forend, which offers high resistance to surface corrosion and general daily wear. This material choice is especially important for commercial bathrooms where moisture levels can fluctuate and cause cheaper finishes to degrade or pit over time, which often leads to an unprofessional appearance that reflects poorly on the facility management.
The satin finish is easy to clean with a damp cloth, so your staff can keep the hardware looking pristine without requiring specialist cleaning agents or abrasive scrubs. Because the strike plate is finished to match the forend, the entire door assembly maintains a clean and coordinated look that meets the high design standards required in modern architecture today.
Installation and Operational Workflow
Follow these steps to ensure a professional installation that maximises the performance of your Union bathroom lock system in your commercial application.
1
Check Door Handing
Assess your door configuration to determine if it is left or right handed before you begin the mortice process. You can quickly reverse the latch bolt on the Union lock by simply accessing the screw or mechanism designed for quick handing, which avoids the need to purchase separate lock versions for different door locations across your building site.
2
Prepare the Mortice
Cut the mortice recess according to the dimensions provided in the technical guide, ensuring that you leave enough clearance for the 235mm by 24mm forend. A clean and tight fit for the case is necessary because it prevents movement or instability that could potentially lead to premature wear of the internal components or the surrounding timber door.
3
Fix and Adjust
Secure the lock body into the door using the provided fixing points, taking care to align the 38mm screw centres for your chosen door furniture. Once fixed, adjust the strike plate to eliminate any rattling or loose door fit, which creates a secure and quiet operation that feels smooth for the end user and prevents unnecessary impact damage.
Expert Installation and Care Tip
When installing the bathroom turn, ensure it rotates freely without putting unnecessary strain on the internal follower mechanism, which will extend the life of the lock. Periodically check that the screws on the door furniture are tight, as small vibrations can loosen fixings in high-traffic areas over several months.
Technical Specifications
| Feature | Rating / Standard | Practical Details |
|---|---|---|
| Backset | 60mm | The distance from the door edge to the centre of the handle spindle. |
| Centres | 78mm | The distance between the centre of the follower and the bathroom turn. |
| Latch | Quick Reversible | Allows for easy site handing on both left and right-hinged doors. |
| Standard | BS EN 12209 | Ensures the lock meets recognised benchmarks for commercial performance. |
| Fire Safety | EN 1634-1 | Suitable for use on fire-rated timber and metal door applications. |
Longevity and Trade Reliability
Investing in the Union HD72 range provides your site with the assurance of a 15-year guarantee. This level of quality demonstrates a commitment to long-term reliability and reduces the administrative time and costs associated with managing hardware failures.
Compatibility and Fitting Notes
This bathroom lock requires a separate privacy turn and emergency release mechanism for full operation, as these items are not included in the primary lock case package.
The 8mm follower includes a 5mm adaptor piece, so ensure your specific bathroom turn and emergency release are compatible with the spindle size required for your installation.
Use the splinter guard provided during the initial fit to achieve a tidy finish on timber doors, which hides any small gaps left after the morticing process is complete.
Specification
| Manufacturer | Union |
|---|---|
| Guarantee | 15 Year |
| Lock Type | Mortice Bathroom |
| Lock Backset | 60mm |
| Faceplate Width | 24mm |
| Forend Finish | Stainless Steel |