The Stealth B5000 boasts a Burglary Rating attributed to its sturdy 1/2" thick steel plate door, firmly held in place by three robust 1" solid steel locking bolts. With reinforced sides composed of concrete and 12-gauge steel, coupled with an internal hinge, this safe achieves an almost impenetrable design, offering minimal access points. On the front of the door, you'll find a UL Approved High Security Electronic Lock - NL UR-2020, along with a brushed nickel handle. Renowned for its reliability, this lock is crafted and tested in the USA. To enhance security further, the lock is shielded by a 1/4" Thick Rockwell hard plate and an internal re-locker, preventing unauthorized access in the event of a punch or drill attack.