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AVO-AS352HB-MULTI
Avocet 2 Hook 4 Roller Multipoint Door Lock 35mm
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Avocet Standard ap352hb (as352hb) 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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£70.90
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£59.08
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Description
Avocet 2 Hook 4 Roller Multipoint Door Lock 35mm
Securing your property requires hardware that balances robust engineering with reliable daily operation. The Avocet 2 Hook 4 Roller Multipoint Door Lock 35mm represents a pinnacle of door security technology, providing a multi-point locking solution that effectively protects your premises against unauthorised entry. Designed for resilience, this mechanism integrates seamlessly into standard profile doors, offering peace of mind to homeowners and facility managers alike.
This sophisticated locking system is manufactured with a Trivalent silver finish, providing an aesthetic that complements modern door hardware while offering superior corrosion resistance. Whether you are performing an emergency replacement or upgrading your existing door security, this equipment provides the mechanical integrity needed to withstand the pressures of daily use.
Unrivalled Mechanical Engineering and Structural Physics
The core of this locking unit relies on precise mechanical physics to maintain structural integrity. When the handle is engaged, the internal gearbox translates rotational energy into linear force, driving the two hooks and four rollers into their respective keeps. This distribution of load is essential for door stability.
- The gearboxes are rigorously tested to over 100,000 cycles to ensure the internal components retain their spring tension and operational fluidity over many years of service.
- By distributing the locking force across multiple points on the frame, the mechanism prevents individual components from suffering metal fatigue or structural deformation under stress.
- The use of high grade steel in the hook assembly ensures that the connection between the door leaf and the frame remains rigid, preventing intruders from using tools to leverage the door open.
- Internal mechanisms are engineered with high tolerance levels to ensure that the transition from a locked to an unlocked state remains smooth even if the door experiences minor thermal expansion.
- The multi-point configuration ensures that if one locking point faces pressure, the load is shared across the entire rail, protecting the door profile from warping or bending.
Mechanical stress is the primary enemy of door hardware. This specific design mitigates this by using tempered steel alloys that provide high tensile strength. By preventing the gearbox from seizing under high torque, the system remains a reliable barrier against forced entry attempts. The interaction between the hook and the steel keep creates a physical bridge that is incredibly difficult to bypass without the correct key.
Operational Workflow for Homeowners
Operating this item is a straightforward process designed for maximum user comfort. Understanding the workflow helps in identifying correct installation and maintenance procedures.
- To lock the door from the outside, the user simply pulls the door shut and lifts the handle upwards to engage the hooks and rollers into the frame.
- Once the handle is in the upward position, the key is turned to throw the deadbolt, which acts as a secondary block to keep the mechanism from disengaging.
- The lift lever functionality works in harmony with the double spindle nightlatch, allowing for rapid entry or exit when the door is unlocked.
- To reverse the latch, one must either undo the hexagonal screw on the side of the lock case or the screw located in the centre of the latch, depending on the specific manufacturing date of your unit.
- Routine operation ensures that all moving parts receive a constant distribution of movement, which prevents the buildup of dust or oxidation within the guide channels.
The user experience is defined by the fluid motion of the internal spring pack. Unlike lesser mechanisms that require excessive force to engage, this hardware is balanced to provide tactile feedback without requiring the user to exert significant strain. This ensures that the door remains secure without becoming a burden to operate during the daily rush.
Ergonomic Benefits and Safety Compliance
Ergonomics in door hardware is often overlooked, yet it is vital for safety in commercial and residential settings. This unit is designed to minimise the physical effort required to secure a door, which is particularly important for elderly users or in high traffic environments where the door is locked and unlocked dozens of times a day.
The smooth action of the internal springs reduces wrist and hand fatigue, ensuring the hardware remains accessible to all. Furthermore, the 92/62mm centres are industry standard, meaning that this unit aligns with most contemporary handles, reducing the likelihood of installation errors that could compromise the safety profile of the entryway. By prioritising ergonomic alignment, you ensure that the hardware meets safety standards required for public access areas.
Expert Tip Always verify your backset measurement before purchasing. A 35mm backset is specific to certain door profiles, and incorrect selection may prevent the handle from sitting flush against the door leaf.
Commercial ROI and Long Term Value
Investing in this multipoint door lock is a sound financial decision for any property owner. High quality locking hardware is an asset that appreciates in value by preventing potential losses related to security breaches. Choosing high specification hardware means you spend significantly less on maintenance cycles and emergency locksmith callouts over the lifespan of the door.
- The Trivalent silver finish is not merely cosmetic, as it provides a protective barrier against environmental oxidation that keeps the mechanism moving freely in damp or coastal climates.
- By choosing a reliable brand like Avocet, you ensure that replacement parts remain available and that the mechanism remains compatible with standard security upgrades in the future.
- High volume facilities benefit from the reduced wear on the internal gearbox, which extends the service interval of the door significantly.
- Investing in top-tier security often positively impacts home insurance premiums by reducing the risk of successful property incursions.
- Durable construction prevents the need for complete door unit replacements, saving thousands in capital expenditure over the long term.
Detailed Technical Specifications
When selecting a replacement lock, precision is paramount. Please review the following technical data to ensure the Avocet 2 Hook 4 Roller Multipoint Door Lock 35mm is the correct match for your door configuration.
| Feature | Specification |
|---|---|
| Backset | 35mm |
| Locking Points | 2 Hooks and 4 Rollers |
| Centres | 92mm and 62mm |
| Overall Length | 2200mm |
| Case Height | 218mm |
| Case Depth | Backset plus 18mm |
| Distance Between Outer Rollers | 1440mm |
| Distance Between Inner Rollers | 795mm |
| Distance Between Deadbolts | 1400mm |
Installation and Compatibility Advice
For those looking to install this locking mechanism, it is important to check the existing profile of your door. Because the backset measures 35mm, this item is specifically engineered for doors where the distance from the edge of the door to the centre of the handle spindle is exactly that measurement. Misalignment in this area will cause the handle to catch or the mechanism to bind, preventing the hooks from engaging fully.
If you find that the latch orientation does not suit your door opening, the reverse capability is designed to be user friendly. Simply locate the screw on the side of the lock case, remove it, slide out the latch, flip it, and reinsert. This flexibility makes this piece of hardware an excellent choice for a wide variety of door types, including UPVC and composite materials.
We recommend cleaning the mechanism with a light silicone based lubricant during your annual maintenance check to ensure the hooks and rollers continue to move without resistance. Regular inspection of the keeps in the door frame is also advised, as debris buildup in these areas can cause the multipoint system to feel stiff when turning the key. Keeping the hardware clean ensures the longevity of the entire locking assembly.
Still unsure if this specific model meets your unique door requirements? Our friendly team is ready to provide expert guidance and answer any technical questions you may have regarding your security installation. Should you require further assistance with your selection, please feel free to reach out to our team at Doorfit. We pride ourselves on providing not just the hardware, but the knowledge required to install it correctly the first time. Our goal is to ensure every customer feels confident in the security of their home.
Specification
| Manufacturer | Avocet |
|---|---|
| Guarantee | 12 Months |
| Lock Type | Multipoint |
| Lock Operation | Euro Cylinder |
| Lock Backset | 35 |
| Lock Centres | 92 / 62mm |
| Follower Size (mm) | 8 |
| Faceplate Width | 16mm |
| Mechanism | 4 Rollers - 2 Hooks |
| Door Material Suitability | UPVC |
| Max Door Thickness (mm) | 65 |
| Forend Finish | Stainless Steel |