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.
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.
Our unique and innovative line provides security for entry doors windows and sliding patio doors of every type and manufacture.
Continuous product innovation new product development.
In this quick video we explain how easy it is to install our high security door lock.
Their counterparts the doorknob locks should also be able to withstand 800 000 cycles 6 strikes against the door and a weight test of 360 pounds.
These locks should ideally be deadbolt locks because they are a much better security option.
We also support mail box locks and bit key mortise locks for vintage interior door systems.