Grade 1 deadbolt locks should be able to withstand 250 000 cycles and 10 strikes against the door.
How to install high security door lock.
He wanted to be able to give to his customers the highest level of security without costing them the earth.
For extra security install one near the bottom of the door as well attach with screws sunk into the door.
Raise the last piece into which the bolt inserts to the same height on the door jamb.
High security door locks will have hardened steel bolts that withstand bludgeoning attacks kicks battering rams sledge hammers shoulder strikes etc used against the door.
High security door locks with strong bolts will also be resistant to cutting.
If you re in a situation where you cannot or do not want to use a drill to install your lock there are a couple ways of installing an interior door lock without a drill.
These locks should ideally be deadbolt locks because they are a much better security option.
Without strength these attacks would bend or snap a bolt severely enough that it fails.