Sargent & Greenleaf Mechanical Automatic Deadbolts

Extension 50 Mechanical Automatic Door Deadbolt

• Surface mounted for ease of installation and suitability for a wide range of applications.
• Automatic locking deadbolt mechanism incorporates an inside release knob for rapid egress, and a manual “dogging” switch to keep the device unlocked when the secured area is occupied.
• Strikes available for both inswing and outswing doors.
• Equipped with either an 8400 or 8500 Series Group 1 or Group 1R combination lock for a high level of security.
• An ideal security solution for indoor applications, such as ATM rooms, cash handling areas, research laboratories, etc.
• All units include a rectangular hardplate that is placed under the mounting plate to deter forced entry attacks.
• Interlocking strike (any model) prevents spreading of the door and frame.
• Hardened steel pins inside the locking bolt deter sawing and increase forced entry resistance.

FEATURES

• Surface mounted deadbolt requires minimum door preparation
• Overlapping strike design resists prying of the door and frame
• Inside release knob unlocks the deadbolt at any time
• Dogging switch can be used to prevent the combination from being scrambled from outside or to keep the door unlocked when desired
• Included hardplate resists drilling through the door to compromise the lock
• Hardened steel pins are incorporated in the locking bolt to resist cutting and sawing
• Three wheel combination lock offers 1,000,000 different combinations
• Four different strikes are available for inswing, outswing, and double doors

Options

• Life Safety Kit converts the Extension 50 into a device that meets the most stringent life safety requirements by requiring insertion of a special key before the mechanism can be locked