They re used on front doors patio doors garage doors that go into your home or other exterior doors.
Door handle with key on both sides.
Benefits of a single key many people like the convenience of using the same key for all of their exterior doors.
Some have a button on the inside that you press to lock the door.
You can also buy a new lock at your hardware store that has two side key entry and replace the whole.
This stainless steel knob set is conveniently designed to work with keys on both sides for enhanced security.
Double sided locks double sided door locks have a keypad on both sides the inside and the outside so you have to enter a code to open the lock from either side.
Yes your local locksmith will be able to replace the cylinder on both sides for keyed entry.
Keyed cylinder in both outside and inside knobs.
Keyed entry door knobs have a lock and key mechanism on both sides for safety and security.
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Key unlocks its own knob independently for doors that require keyed security on both sides.
These locks are labeled as reversible handing or universal handing and can be installed on either side of the door.
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These are often used on gates with rungs that you can reach through and get to the handle on the other side.
Communicating double cylinder lock.
This is especially true for doors that have glass panels or adjacent windows i e.
Key in either knob locks or unlocks both at the same time for entry doors with glass near the lock including inside office rooms that require security.
An intruder could unlock the door by breaking the glass and reaching inside.