Recommended lock of the day – Chubb 4L67E rim lock By Paul Byrne on November 1, 2012 in recent Chubb 4L67E rim lock. The Chubb 4L67E’s hardened steel 20mm deadbolt automatically deadlocks on closing the door, providing convenience with high security. High security features in the design include drill, saw, pick and torque resistance and an internal lockable handle. This makes the 20mm Chubb rim lock buy ambien in usa ideal for all types of front doors in particular glazed doors, as the lockable handle cannot be operated through a smashed window. For more information or security advice call Alexandra Locksmiths on 020 8883 1555 or 020 8364 2000.