Liberty Tough Door has 3- or 4-sided bolts installed
First of four pin-bar brackets installed in safe door
Anti-pry tabs are secured on pinbar brackets
Depending upon the model, active-locking bolts are installed on 1-, 3-, or 4-sides of the door. The better the series, the more sides of bolt coverage.
Anti-pry tabs are installed on higher-end models for additional pry-resistance.