Abstract: A vandal resistant shrouded slide bolt lock assembly is provided and consists of a shroud guide and a staple secured to a plate that is secured near and edge of a door. A bracket is secured to a wall frame so that when the door is closed an end portion of the shroud guide will cover the bracket allowing a slide bolt to manually enter the bracket and an aperture in the end portion of the shroud guide while a hasp will contact with the staple. A bushing rotatively mounted on said slide bolt between said shroud guide and said hasp to prevent tampering and cutting of said bushing and said slide bolt therein.

Abstract: A shrouded track slide bolt which is very difficult to breach including an anti-saw spindle inserted into the bolt where it bridges the gap between the door and the door jamb. If a saw is inserted into this gap the saw will stop cutting when it hits the anti-saw spindle which rotates freely. The mechanism consists of a fixed block and a sliding block with an attached dead bolt. If a saw is insertd into the gap between the blocks, a bolt collar will rotate making sawing impossible. At all other points the bolt is surrounded by massive case hardened steel blocks. A key system is provided so that a key is necessary to activate the bolt and the key may only be withdrawn if the bolt is fixed in either the fully extended or fully withdrawn position. A door jamb reinforcing insert is provided to strengthen the door jamb.