Union 4L67E C-Series BS High Security Rim Lock

Formerly known as the Chubb 4L67, the Union 4L67E C-Series is a British Standard certified rim lock offering one of the highest levels of mechanical door security available. Recommended by insurance providers and police forces, this lock is ideally suited for front entrance doors where certified, heavy-duty protection is essential.

This model features a 20mm hardened steel deadbolt that automatically deadlocks both internally and externally when the door is closed. It offers true key control, with a secure 10-disc Ava mechanism cylinder and robust resistance to all forms of physical attack including sawing, drilling, and torqueing.

The inside knob is also key-lockable for additional safety, and the unit is fully compliant with BS3621: British Standard for high-security locks.

• Size: 60mm Backset
• Finish: Polished Brass
• Features:
  • Recommended by insurance companies and the police
  • Automatic deadlocking on door closure (inside & outside)
  • Key operation from outside
  • Key-lockable turn knob from inside
  • 20mm hardened steel deadbolt
  • Drill, saw, and force resistant
  • Resistant to picking, torque and manipulation
  • High security 10-disc Ava cylinder mechanism
  • Supplied with 3 high-security keys (extra keys: £15 each)
  • Keying: May be supplied to differ or keyed alike
• Standards & Certifications:
  • Kitemarked to BS3621: Insurance Approved
• Best Use: Front doors of homes, apartments, and high-risk premises
• Installation Area: Available in Birmingham and surrounding areas