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FUH-856-2H2R-30MM
Fuhr 856 (42 3856 92 303) multipoint door lock
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Fuhr 856 (42 3856 92 303) multipoint 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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£96.00
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£80.00
Excl. VAT
Incl. VAT
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Description
Fuhr 856 (42 3856 92 303) multipoint door lock
Securing your premises requires hardware that balances robust engineering with seamless operation. The Fuhr 856 (42 3856 92 303) multipoint door lock represents a pinnacle in door security technology. Designed for those who refuse to compromise on safety, this mechanism provides a multi-locking engagement that protects residential and commercial properties against forced entry.
When you choose this component, you are investing in a legacy of precision manufacturing. The assembly integrates multiple locking points across the frame, ensuring that the door remains held firmly in place under significant physical pressure. It serves as a primary defensive barrier that provides peace of mind for property managers and homeowners alike.
This model is specifically engineered to deliver long-term reliability in high-traffic environments, ensuring your entrance remains both secure and easy to operate throughout the seasons.
Advanced security features and mechanics
The core strength of this hardware lies in its sophisticated configuration. By combining two hook bolts and two rollers, the device distributes tension evenly across the door leaf. This prevents the common issue of door warping or bowing that can occur over time due to weather exposure.
- The dual hook bolt design effectively anchors the door to the frame to prevent leverage attacks.
- Smooth roller cams allow for a gentle compression against the door seal to maintain weatherproofing.
- The 30mm backset is a versatile measurement that fits a wide range of modern door profiles.
- This equipment uses high-grade steel components to resist sawing and drilling attempts.
- The internal gear system is designed for a low-friction cycle that ensures a long operational life.
Mechanical physics and operational integrity
Understanding the physics of this lock reveals why it is a superior choice for heavy-duty doors. When the handle is lifted, the internal gear train translates rotational force into vertical and lateral movement. This force is distributed across the entire length of the mechanism, creating a balanced load that reduces stress on any single point.
The hooks engage with keeps on the frame to create a physical lock that resists pry bars and lateral force. Because the weight and tension are spread across four distinct points, the risk of fatigue in the locking strip is significantly reduced. This structural integrity ensures that the door remains stable even during extreme temperature changes that might cause other materials to flex.
Step by step operational workflow
Using this multipoint locking system is an intuitive experience that prioritises user comfort. When exiting or securing a room, you simply pull the door closed to ensure the latch engages with the strike plate. Once the door is fully shut, you lift the handle upwards in a single fluid motion.
This movement activates the internal drive rod, which pushes the hooks and rollers into their final secured positions. After the handle reaches the peak of its travel, you turn the key to deadbolt the mechanism. This final turn immobilises the handle and ensures the door cannot be opened from the outside until the key is returned to the original position.
Ergonomic health and safety compliance
Modern hardware must satisfy stringent safety standards. This model is built to ensure that door operation does not cause physical strain or repetitive stress injuries for the user. The internal spring mechanism is calibrated to provide just enough resistance to feel solid, while remaining light enough to be operated by users of all ages.
By preventing the need for excessive force or jiggling of the handle, this equipment contributes to a safer user environment. It also aligns with fire safety and emergency egress requirements when paired with the correct door furniture. Using smooth, high-quality hardware ensures that you remain compliant with building regulations while maintaining ease of access.
Commercial ROI and long term value
Investing in premium door hardware is a strategic financial decision for any property owner. Cheaper, lower-quality locks often require frequent maintenance or complete replacement due to internal component failure. The Fuhr 856 (42 3856 92 303) multipoint door lock is built for durability, which drastically reduces the total cost of ownership over the lifespan of the door.
When you reduce the frequency of repair cycles, you save on both labour costs and the downtime associated with door security failures. Protecting your assets from unauthorised access also mitigates the risk of financial loss through theft or vandalism. This item stands as a safeguard for your property, providing a return on investment through consistent performance and reduced administrative overhead.
Technical specifications
The following table provides a breakdown of the core technical parameters for this unit. Please ensure that these specifications match your current door profile before proceeding with installation.
| Feature | Specification |
|---|---|
| Product Name | Fuhr 856 (42 3856 92 303) multipoint door lock |
| Backset | 30mm |
| Locking Points | 2 Hooks and 2 Rollers |
| Operation | Lever operated |
| Material | Hardened steel and zinc alloy |
| Application | Residential and commercial doors |
Compatibility and maintenance
This Fuhr 856 (42 3856 92 303) multipoint door lock is compatible with a wide array of uPVC and composite door frames. We recommend ensuring that your strike plates are properly aligned during the initial fitment process to avoid unnecessary friction. Proper alignment prevents the rollers from binding and ensures the hooks engage fully without scratching the frame.
Maintenance for this unit is straightforward. We suggest applying a small amount of silicone-based lubricant to the hooks and rollers every six months. This simple routine keeps the internal mechanism clear of debris and ensures that the hardware continues to function with minimal resistance. Always avoid heavy oils that can attract dust and grime, as these can eventually harden and impact the smooth movement of the locking rod.
If you have any questions regarding the compatibility of this lock with your existing door, our team is here to assist. We want to ensure that every customer at Doorfit receives the correct hardware for their specific project. Whether you are performing a simple repair or a full door upgrade, choosing the right specifications from the start is the key to a successful installation.
Secure your property with confidence by selecting hardware that is tested for performance and built for longevity. This model is a testament to quality engineering, offering a robust solution that stands the test of time. Place your order today to upgrade your security and enjoy the benefits of a professional-grade locking system.
Specification
| Manufacturer | Fuhr |
|---|---|
| Guarantee | 12 Months |
| Lock Type | Multipoint |
| Lock Operation | Euro Cylinder |
| Lock Backset | 30 |
| Lock Centres | 92mm |
| Follower Size (mm) | 8 |
| Mechanism | 2 Rollers - 2 Hooks |
| Door Material Suitability | UPVC |
| Max Door Thickness (mm) | 65 |
| Forend Finish | Stainless Steel |