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• What Is a Double Key Deadlock?

What Is a Double Key Deadlock?

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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.

Brinks Keyed Entry Satin Nickel Single Cylinder Deadbolt

Double keyed Deadbolt Lock - Keyed on Both Sides, 2-Way Adjustable Cylinder Deadbolt (Privacy/Passage), Satin Stainless Steel(Black, Double Side)

Kwikset Deadlock Double Cylinder Lock With 2 Keys 665 RCL-RCS4 US3 Polish Brass

Gatehouse And Iron Gate Interlocking Double Key Deadlock

Lockmasters. Arrow E Series Double Cylinder Deadbolt; Satin Chrome

Deadlock

* Easy to install * 25mm deadbolt * C4 keyway * 3 brass keys * Adjustable backset 60-70mm * Suitable for external doors

Buy Right Stainless Steel Double Cylinder Deadbolt

Dead bolt - Wikipedia

Choose 31/32 or 1-1/8 Backset Backset: The distance between the edge of the door and Center of the key cylinder. Huge five-ply laminated steel bolt

Pacific Doorware AR Rite Style Door Lock Mortise Deadbolt & Double Keyed Cylinder Set, in Duronotic (1-1/8 Backset)

Lane Satin Stainless Steel Double Cylinder Deadbolt - Bunnings Australia