Union Strongbolt 5 Lever Deadlock BS3621 Satin Brass 76mm 2100S
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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Description
Union Strongbolt 5 Lever Deadlock BS3621 Satin Brass 76mm 2100S
Securing your premises requires hardware that balances robust physical resistance with reliable daily performance. The Union Strongbolt 5 Lever Deadlock BS3621 Satin Brass 76mm 2100S stands as a premier choice for those who refuse to compromise on safety. Designed specifically for high security applications, this mortice deadlock integrates advanced engineering to provide a formidable barrier against unauthorised entry while maintaining ease of use for the homeowner or facility manager.
When you choose this high quality hardware, you are investing in a product that has been rigorously tested to meet the most stringent industry standards. Its presence on a door serves as a visual deterrent to potential intruders, while its internal mechanisms offer the mechanical integrity required to withstand various methods of physical assault. Whether you are upgrading residential doors or fitting out a commercial space, this unit provides the peace of mind that comes from professional grade security.
Advanced Mechanical Engineering and Resistance
The core of this security device lies in its sophisticated internal configuration. It is built to address the specific physical forces exerted during a burglary attempt, such as drilling, sawing, and picking. By distributing mechanical loads effectively, the lock ensures that the door remains firmly anchored to the frame even under significant pressure.
- The anti-pick, anti-saw, and anti-drill security features work in unison to provide a comprehensive shield against common methods of forced entry used by criminals.
- A unique chamfered bolt design significantly increases the performance of the lock when it is subjected to side load testing by ensuring the bolt remains engaged during structural movement.
- The chamfered profile of the deadbolt also serves to deflect drill bits, making it exceptionally difficult for an attacker to compromise the internal lever mechanism through the faceplate.
- Hardened steel pins are strategically integrated into the chassis to provide immense resistance against sawing attempts, protecting the integrity of the locking bolt.
- The 20mm deadbolt provides a deep reach into the keep, ensuring positive deadlocking and providing substantial resistance against crowbar attacks or physical leverage.
Operational Workflow and User Experience
Operating this deadlock is a fluid experience that highlights the precision manufacturing behind the brand. The interaction begins when the user inserts the key into the cylinder, engaging the five lever mechanism that allows for a smooth rotation. The internal springs and levers are calibrated to provide tactile feedback, ensuring the user knows exactly when the bolt has fully extended or retracted.
Because the mechanism is designed for high frequency use, the transition between locked and unlocked states is consistent. The heavy duty internal components reduce the friction typically associated with cheaper alternatives, which prevents the lock from sticking or jamming over time. This reliability is vital for emergency exits where speed and ease of operation are non negotiable safety factors.
Choosing hardware that meets British Standards is not just about insurance compliance, it is about ensuring the safety of everyone within the building. This model is fully tested to BS3621, which means it satisfies the requirements for security locks designed to prevent burglary. By installing a lock that carries this certification, you are adhering to industry best practices and ensuring that your door hardware is fit for purpose.
Ergonomic Health and Safety Compliance
The design of this lock reflects an understanding of the practical challenges faced by installers and end users. By adhering to ergonomic principles, the key operation requires minimal torque, which reduces physical strain for elderly users or those with limited grip strength. Furthermore, the design accounts for fire safety by being compatible with 30 and 60 minute fire doors.
In the event of a fire, the structural integrity of the lock remains uncompromised, allowing the door to maintain its protective role in containing smoke and flames. The ease of installation, featuring a radius inner forend, reduces the likelihood of damage to the door edge during fitting, which maintains the fire rating integrity of the door assembly itself. This attention to detail ensures that the security hardware does not become a hindrance during a building emergency.
Commercial ROI and Long Term Value
Investing in premium door hardware is a sound financial decision for any property owner. While the initial cost may be higher than generic alternatives, the long term savings are significant. A durable lock reduces the need for frequent maintenance, repairs, or replacements, which lowers the overall cost of ownership over the life of the door.
Consider the potential losses associated with a security breach, including the cost of stolen assets, property damage, and increased insurance premiums. By upgrading to this high security solution, you are mitigating these risks effectively. The robust construction of this item ensures that it continues to function reliably for years, providing a consistent return on investment through durability and enhanced asset protection.
Technical Specifications
Understanding the precise dimensions of your door preparation is essential for a successful installation. This unit is designed to fit into many standard UK mortices, which often eliminates the need for additional carpentry or complex modifications to the door edge.
| Feature | Specification |
|---|---|
| Case Size | 81mm (3 inches) |
| Backset | 57mm |
| Faceplate Dimensions | 134mm x 26mm |
| Case Height | 88mm |
| Finish | Satin Brass |
| Mechanism | 5 Lever |
| Standard | BS3621:2007 |
| Fire Rating | 30 and 60 Minute |
| Security Level | High (Police Approved) |
Installation and Compatibility
The design of this lock reflects an understanding of the practical challenges faced by installers. The radius inner forend is a thoughtful detail that allows for faster and cleaner installation into prepared timber doors. Because the case size is standard, it can be swapped into existing door cutouts without the need for extensive wood removal, which preserves the structural integrity of the timber.
The unit is suitable for timber doors that are hinged on either the left or the right side, providing versatility for various entry points. It is designed for use on doors up to 54mm thick, making it a flexible choice for both heavy duty residential entrance doors and various commercial applications. The brass plating on the forend and striking plate not only provides a high end aesthetic finish but also offers a level of corrosion resistance that is ideal for internal or sheltered external environments.
Why Choose This Model for Your Property
When you select the Union Strongbolt 5 Lever Deadlock BS3621 Satin Brass 76mm 2100S, you are choosing a brand with a long standing reputation for quality. The combination of its CE marked status, Certifire approval, and Secured by Design accreditation makes it one of the most reliable choices on the market today. It provides the perfect balance between sophisticated aesthetics and heavy duty mechanical security.
The aesthetic appeal of the satin brass finish ensures that it complements a wide range of door furniture and interior design schemes. It is a subtle yet effective way to upgrade the look of your doors while simultaneously bolstering your security. Whether you are a professional contractor or a discerning homeowner, this hardware offers the performance and peace of mind you need to secure your property with confidence.
Do not leave your security to chance. Ensure your doors are equipped with the best hardware available. With its combination of anti-attack features, rigorous testing, and ease of installation, this product is the definitive solution for those who prioritise safety and quality. If you are not sure if this mortice lock is right for your requirements please contact our friendly team today for expert guidance on measurements and compatibility.
Commitment to Security Standards
The importance of BS3621 compliance cannot be overstated. Insurance companies often mandate this standard for external doors to ensure that the lock is capable of withstanding specific physical tests. By choosing this 5 lever mortice deadlock, you are meeting those requirements head on. The inclusion of two keys in the package ensures that you have a backup from the moment of installation, while the high quality brass finish provides a durable layer of protection against the elements.
Every aspect of this lock, from the hardened steel pins to the chamfered bolt, has been engineered to provide maximum resistance. It represents the pinnacle of modern locking technology, designed to keep your home or business safe from intruders. Make the smart choice for your security today by investing in the Union Strongbolt 5 Lever Deadlock BS3621 Satin Brass 76mm 2100S and enjoy the confidence that comes with industry leading protection.
Specification
| Manufacturer | Union |
|---|---|
| Dimensions | 89 (H) x 81 (D) |
| Guarantee | 10 Year |
| Lock Type | Mortice Deadlock |
| Lock Operation | Lever |
| Lock Backset | 57mm |
| Follower Size (mm) | 0 |
| Faceplate Width | 26mm |
| Environmental Suitability | All |
| Mechanism | Dead Lock |
| Door Material Suitability | Wood |
| Max Door Thickness (mm) | 54 |
| Forend Finish | Polished Brass |
| Security Standards | BS3621:2007 |


