Applications:

Usually used with a cylindrical lock a deadbolt features a bolt that extends (with/without key) from the door to give added security.

Single Cylinder Thumbturn &
Double Cylinder Deadbolts

Thumbturn options for interior use with Single Cylinder OR Double Cylinders (keyed both sides)

Double cylinder deadbolts requires a key on both the inside and outside to lock and unlock the door. Best suited for doors that have glass panes on or near the door. Prevents an intruder from breaking the glass and reaching in to unlock the door. Recommended for use on businesses to secure doors after hours when the building is unoccupied. Extreme caution should be used when installing double cylinder locks on homes or apartments. Always check local building codes and make provisions to have a key hanging nearby or have at least one other door that does not require a key to exit. For most residential applications you should consider using a thumbturn deadbolt.

Back to Deadbolts

Back to Hardware

Back to Home page