From Yale Locks, the P5211 Security Deadbolt is a cylinder-operated mortice deadbolt designed to provide additional security. Inside, a thumbturn action throws the deadbolt for straightforward operation, while the outside is key operated for controlled access. Key features Cylinder-operated mortice deadbolt for additional security Thumbturn operation on the inside throws the deadbolt Key operated from the outside Polished brass finish Model number: P5211 Please note: Colours shown are as accurate as possible, though may vary slightly depending on your screen settings.