BS3621 Fortress 5 Lever Mortice Deadlock

• Conforms to the BS 3621:2017; meets the exacting demands of insurance companies and the Police
• 20mm bolt throw for additional strength and security
• Designed with hardened steel plates to resist drilling and two hardened steel plates in the deadbolt to resist hacksawing
• Keys have 1.000 variations for added security
• All steel levers have false notching to resist lock picking.

The BS3621 Fortress 5 Lever Mortice Deadlock is a high-security locking solution designed for external wooden doors where safety, durability, and insurance compliance are essential. Built to meet British Standard BS3621:2007, this lock is insurance-approved and widely trusted by homeowners, landlords, and property managers across the UK.

Featuring a robust 5-lever mechanism, the Fortress deadlock offers enhanced protection against forced entry, including anti-pick, anti-saw, and anti-drill features. The hardened steel deadbolt delivers reliable strength and long-term performance, even in high-traffic environments.

Perfect for front, back, and side entrance doors, this mortice deadlock is commonly used in combination with a nightlatch or security escutcheon for added peace of mind. It’s easy to install and fits most UK-standard wooden doors.

The lock is available in a choice of polished brass or satin chrome finishes, allowing you to match it with existing door hardware and maintain a cohesive look throughout your property.

Key Features:

• Complies with BS3621:2007 – meets most UK home insurance requirements

• Secure 5 lever mechanism with anti-pick and anti-saw protection

• Hardened steel deadbolt for maximum strength and reliability

• Suitable for use on external wooden doors

• Available in satin chrome or polished brass finish

• Supplied with 2 keys, strike plate, faceplate, and fixing screws

• Compatible with most UK mortice lock fittings

Whether you’re upgrading your home security or fitting out a new property, the Fortress 5 Lever Mortice Deadlock offers trusted performance, sleek design, and full insurance compliance.