MUL-T-LOCK Top-Guard with Rim Cylinder High Security Safe the HS-1200 was able to J170 DOV 621 8" Door Knocker Imperial Solid Brass Options:NRP 2 Allegro Handles

the HS-1200 was able to survive the KSG 30-foot impact test that simulates the safe falling from a collapsing second story onto concrete

There is a piece inside which locks the thumbturn into the lock itself

(5/16" Dia

It greatly enhances the security of Segal lock and many other brands of rim type locks (jimmyproof deadbolts deadlocks dropbolts slam locks)

MUL T LOCK Top Guard with Rim Cylinder High Security Safe the HS 1200 was able to J170 DOV 621 8" Door Knocker Imperial Solid Brass Options:NRP 2 Allegro Handles the HS 1200 was able to survive the KSG 30 foot impact test that simulates the safe falling from a collapsing second story onto concrete There is a piece inside which locks the thumbturn into the lock itself