Grade 1 deadbolt locks should be able to withstand 250 000 cycles and 10 strikes against the door.
Defender security high security door lock installation.
Our unique and innovative line provides security for entry doors windows and sliding patio doors of every type and manufacture.
These locks should ideally be deadbolt locks because they are a much better security option.
Defender security satin nickel u 10827 door reinforcement lock add extra high security to your home and prevent unauthorized entry 3 stop aluminum construction finish 4 6 out of 5 stars 7 811.
Defender security door reinforcement lock add extra high security door lock find complete details about defender security door reinforcement lock add extra high security door lock security lock door lock security door lock from locks supplier or manufacturer zhongshan kaiying hardware manufacture co ltd.
In this quick video we explain how easy it is to install our high security door lock.
We also support mail box locks and bit key mortise locks for vintage interior door systems.
Prime line s defender security products are the world s leading brand of residential home security hardware.