Mortice Lock commonly used in doors. It is known for its durability, security, and classic design. It consist of several components that work together to provide effective locking and unlocking functions. Mortice Lock Kit Function - where the deadbolt locks by a key on both the exterior and interior of the lock. Latch is operated on the interior and exterior by a knob or lever. - Features:Compatible with most Lockwood rose and plate furniture including Brass Door Furniture, Robert Watson Series, Artefact Series II, Ovation Series and VSR Series - High purity zinc alloy material cases with stainless steel chassis plates. Stainless steel faceplates provided as standard - Specifications:Backset: 60mm - Latch Bolts: Plainlatch only - Door Thickness: 32mm - 50mm - Finish: Stainless Steel - Compliance/Ratings:Conform with Level S7 (Physical Security) Australian Lock Standard (AS-4145.2-2008). Conforms to Level S8 (Physical Security) when fitted with door furniture and anti-drill cylinder. - Conform with Level D8 (Durability) Australian Lock Standard (AS4145.2-2008). Fire Rating: All Selector 3770 Series Cylinder Mortice Locks have been successfully tested up to 4 hours (depending on type of doorsets) on fire door assemblies in accordance with Australian Standard AS 1905.1-2015, Part 1: Fire Resistant Doorsets. - Anti-Corrosion: Conform with Level C6 (168 hours) Australian Standard (AS4145.2-2008).