Double cylinder deadbolts have a keyed cylinder on both sides.
Door handle with key lock on both sides.
Gobrico 3 pack keyed alike brushed nickel double cylinder deadbolts door locks stainless steel keyed on both sides 4 0 out of 5 stars 42 45 14 45.
For use in combination with a door knob lever lock.
Secure spaces make for joyful people and productive working environments.
Door handlesets come with a handle and key lock to install on the exterior of a door.
This is a good option for doors with glass or windows since an intruder can t break into the door even if the glass window is broken.
Probrico satin nickel double cylinder deadbolt with 2 side both keyed round modern contemporary deadbolt door lock for interior and exterior 1 pack 4 5 out of 5 stars 19 18 99 18.
I was surprised to find that there is a need for them at times.
Door handle lock pack set stainless steel dual color handle anti theft door lever lock with keys silent solid for home room bedroom s door 4 0 out of 5 stars 1 28 99 28.
Provide greater control over access to your home.
Why buy a knob lock that can be locked with a key on both sides.
Entry can be gained by entering a numeric code on the programmable keypad without the need for a key.
A double cylinder door knob is a door knob that is keyed on both sides of the door or in a place where the door that needs the option of locking on either side of the door.
These door knobs are not very common at all that s for sure.
Designed as extra security for exterior doors.
They re popular and attractive to use on front doors.
This stainless steel knob set is conveniently designed to work with keys on both sides for enhanced security.
1 set entry door lever and deadbolt lock set deadbolts keyed both sides all keyed same wave style front and exterior door handleset with double cylinder satin nickel finish 4 2 out of 5 stars 316 37 79 37.
After you unlock the door you press a thumb latch on the handleset to open or close the door.
Deadbolts come in two versions.
They also come with a lever or door knob for the other side of the door and a deadbolt.
Both keyed sides of the lever handles will either simultaneously lock or unlock both ends of the lock after a key is used works just like a double cylinder deadbolt will not lock automatically.