4 3 out of 5 stars 209.
Secondary door locks.
It works like a door blocker but it s held in place at the existing strike plate on your door so there s no drilling or changing out hardware.
Get it as soon as thu oct 1.
Secondary security locking device this u 9847 patio sliding door loop lock can be used on a patio sliding door as a secondary security lock for increased home safety.
Securityman sliding door security bar child proof sliding door lock bar with anti lift lock fits most doors windows adjustable patio door security bar 19 51 built with high grade iron.
This door lock is designed for doors that only swing inward and is made to work with your existing door locks and doors without any locking feature.
Defender security u 9901 swing bar lock for hinged swing in doors secondary security lock for door and home security 3 7 8 bar length diecast zinc construction with a brushed chrome finish.
It operates on the power of 4 aa batteries and battery life doesn t seem to be a common complaint by reviewers.
This door lock is easy to use and install by simply squeezing and sliding the door lock into place.
95 get it as soon as thu nov 21.
Child safe security device this door loop lock can also be installed out of reach of children so they cannot open the door by themselves providing additional child safe door security.
Known as the original portable door lock the addalock is the easiest lowest impact item on our list.
Locks that are grade 1 offer the highest level of strength and security.
Get it as soon as thu oct 1.
The powerbolt 2 isn t a smart door lock meaning it doesn t need to be connected to any smart home systems or hubs for operation.
4 5 out of 5 stars 659.
2 pairs nuzamas door flush bolt 4 inch 10cm heavy duty stainless steel door edge lever slide bolt latch lock primary secondary doors double open security 15 95 15.
Some exterior door locks are designed to automatically lock when the door closes.
Find sliding patio door locks at lowe s today.
Much like interior locks secondary locks are available to customers who may have a specialized need for security.
The powerbolt 2 features a 6 button keypad that can be programmed with up to a half dozen unique user codes.