1 Double Locking Nightlatch

• Automatic Deadlock is engaged when you close the door for instant security and latch bolt can be held back temporarily with snib button
• Includes Yale rim cylinder operated by key from the outside with standard security components
• Internal nightlatch handle can be locked from the inside with a key, ideal for use with wooden doors with large glazed panels
• Anti-card slip protection, prevents your lock from being vulnerable to this specialist technique that only requires a credit card sized piece of plastic

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