Extension 50 Mechanical Automatic Deadbolt Lock

The S&G Extension 50 is a surface-mounted deadbolt requiring minimum door preparation. As a three-wheel combination lock, it offers 1 million different combinations. It is an ideal security solution for indoor applications, such as ATM rooms, cash handling areas, research laboratories and more.

• Inside release knob unlocks the deadbolt at any time.
• Four different strikes for inswing, outswing and double doors.
• Overlapping strike design resists prying of door and frame, and hardplate under mounting plate deters forced entry.
• Automatic locking deadbolt incorporates an inside release knob for rapid egress and a manual "dogging" switch.
• Dogging switch prevents the combination from being scrambled from outside and keeps door unlocked when desired.
• Hardened steel pins are incorporated in the locking bolt to resist cutting and sawing.
• Equipped with a 8400 or 8500 Series Group 1 or Group 1R combination lock for a high level of security.