What Is a Double-Cylinder Door Lock?

A double-cylinder door lock is a type of security device primarily found on residential doors. Homeowners often use these locks in conjunction with other types of security products, such as lever locks or handlesets. They can also be used as the primary locking mechanism on patio or balcony doors.

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Schlage B-Series Polished Brass Double Cylinder Deadbolt - Anderson Lumber

Enhance your home security with the Honeywell Double Cylinder Door Lock. It features a specially designed pin and tumbler configuration that provides

Honeywell Double Cylinder Deadbolt, Satin Nickel, 8112309

8011 Contemporary Double Cylinder Deadbolt Buy a 8011 8011 Contemporary Double Cylinder Deadbolt by Baldwin Deadbolts online - Baldwin Direct

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Double Cylinder / Deadbolt / V1801

Individual keys:Each dedbolt with its own key. Not keyd alike. Different keys for security needs. This double cylinder deadbolt can be locked or

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SCHLAGE PRIMUS DOUBLE CYLINDER DEADBOLT 000101 CP KEYWAY - B762P626LKB

Double Cylinder Door Locks Manufactured with Automatic Production Lines - China Cylinder Lock, Cylinder Door Lock