Era 193 & 183 Double Locking Nightlatch Mechanism : 5 pin Cylinder Cylinder Finish : Brass, Polished Chrome or Satin Chrome Case Finish : Brasslux, Polished Chrome or Satin Chrome Keys Supplied : 3 Keyed alike or master keyed available Door thickness: 32 mm to 57 mm Latchbolt is withdrawn by handle from inside and key outside. Bolt can be deadlocked by key from outside or pushbutton inside. The hold back facility is operated by rotating handle and depressing the pushbutton. Both deadlocking and holdback facilities are released by rotating the handle. The ERA Double Locking Nightlatch is available in both 40mm and 60mm backset, designed to replace most existing front door locks. The product is ideally suited for solid and glass panelled wooden doors, as it has been designed with an ergonomic internal locking handle offering added security against forced entry. The main lock bolt is "automatically" deadlocked when the door is closed, preventing the main bolt being retracted by a credit card. The inside handle can be deadlocked by an anti-clockwise turn of the key from the inside so securing the lock against forced entry. The bolt can be held in the withdrawn position (only) with the use of the snib feature. |