Narrow Style Mortise Locks
The Astra NB-Series of mortise locks is designed for heavy-duty use with a narrow backset installation on narrow framed metal or wood doors for commercial, institutional and industrial building applications. Solid brass construction ensures the utmost security and durability, as no zinc base die castings or plastic components are incorporated. The steel and phosphor bronze springs allow for a very rigid specification. This perfect security solution covers everything from a combination lock to a vestibule lock to an escape lock.
Deadlatching Storeroom Lock + Modern style + Prevented from being cut through by reinforced centre + Maintenance free operation + Convenience of master key + Various functions available within the NB-Series Range, with metal and timber door fixing options
Satin chrome plate finish (Other finishes available) + Laminated brass swing bolt hardened by a steel centre reinforcement + Bolt of 32mm in the locked position