Union 5 Lever Deadlock

The Union  3G115 5 Lever Mortice Deadlock is a premium high-security locking solution, designed for use on timber doors where strong, reliable protection is required.

Tested to BS3621 standards, this deadlock is approved for insurance-rated security, making it suitable for external doors in homes, offices, and commercial buildings. The lock features a 5 lever mechanism, offering enhanced resistance against picking and manipulation.

The hardened steel deadbolt incorporates anti-saw rollers, providing additional protection against cutting attacks, while the internal mechanism is reinforced to resist drilling, picking, and forced entry.

With a 14mm bolt throw, the lock delivers a strong and secure engagement into the keep, ensuring dependable door security.

Suitable for doors up to 50mm thick and fully reversible for left or right-hand installation, the 3G115 is a versatile and trusted choice across domestic and industrial environments.

Key Features

• BS3621 insurance-approved high-security deadlock
• 5 lever mechanism for enhanced security
• Hardened steel deadbolt with anti-saw rollers
• Resistant to drilling, picking, and force attacks
• 14mm bolt throw for strong locking engagement
• Suitable for timber doors up to 50mm thick
• Reversible for left and right-hand doors
• Supplied with keys and box keep

Specifications

• Model: 3G115 (C-Series)
• Type: Mortice Deadlock
• Security Rating: BS3621
• Mechanism: 5 Lever
• Bolt Throw: 14mm
• Door Thickness: Up to 50mm
• Sizes Available: 2.5″ (67mm) / 3″ (76mm)
• Finishes: Polished Brass / Satin Chrome

Ideal For

• External doors (home & commercial)
• Offices and industrial premises
• High-security applications
• Insurance-compliant installations

A trusted industry standard for door security—ideal where insurance-rated protection and long-term reliability are essential.