What Is a Double Key Deadlock?
Par un écrivain mystérieux
Description
Is adding a double-cylinder deadbolt to an exterior door a good idea? Find out about the pros and cons of adding double-keyed deadbolts vs. single-keyed deadbolts to exterior doors for safety and security. Deadbolts with two keys pose unique challenges.
* Easy to install * 25mm deadbolt * C4 keyway * 3 brass keys * Adjustable backset 60-70mm * Suitable for external doors
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