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.

Secure your property with confidence using the BS3621 Fortress 5 Lever Mortice Deadlock—a high-security solution built to meet stringent British Standard 3621:2007 specifications. This robust deadlock is trusted by homeowners, landlords, and insurance providers alike for its strength, durability, and compliance with the latest security regulations.

Ideal for external wooden doors, the Fortress 5 Lever Deadlock features an anti-saw, anti-pick design to deter unauthorized entry. With hardened steel plates and a reinforced locking mechanism, it offers reliable protection for residential and light commercial use.

This mortice deadlock is insurance-approved and typically required for properties where insurers specify a BS3621-compliant lock. The lock is supplied with two keys, a matching strike plate, and all necessary fixings for straightforward installation.

Key Features:

• Certified to BS3621:2007 for enhanced security

• 5 lever mechanism with anti-pick, anti-drill protection

• Hardened steel deadbolt resists sawing

• Suitable for external wooden doors (inward opening)

• Available in polished brass, satin chrome, or standard finishes

• Supplied with 2 keys, strike plate, and fixings

• Compatible with most UK door setups

Whether you’re upgrading existing door locks or fitting out a new property, the Fortress 5 Lever Mortice Deadlock delivers peace of mind with robust construction and proven performance. It’s the ideal choice for anyone looking to meet both legal and insurance security standards without compromising on reliability or appearance.

For maximum protection, this deadlock can be paired with a corresponding BS3621-rated nightlatch or security escutcheons.