Marks Nova 5 & 55, Protector BE101 & LA118, 7 & 9 Series 7 & 9, SS55, 31, 2 & 3 Series 31, 2 & 3, 95 Series 95, Survivor 195, 295, 395, 495, Defender, PD, i-Que, HI-SECURITY Lockset Guide

The Nova 5 & 55, Protector BE101 & LA118, 7 & 9 Series, 31, 2 & 3 Series, Survivor 195, 295, 395, 495, 95 Series, Defender, SS55, PD, i-Que, HI-SECURITY are high-quality security products suitable for various applications like schools, hospitals, commercial buildings, and more. They offer a range of features to meet different security needs, including keyed single and double cylinder functions, various lever styles, and electronic access control options. These products are designed for durability and reliability with features like thru-bolted trim for proper alignment and easy installation, independent lever support springs, and UL Listed for 3-hour fire rating.

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Marks Lockset Guide | Manualzz

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Key features

  • Thru-bolted trim
  • Self adjusting spindles
  • Independent lever support springs
  • Cast stainless steel with bronze roller bearings
  • UL Listed, 3 hour fire rated

Frequently asked questions

The Protector Series locksets have an "Override Guard" feature that is designed to result in spindle failure when excessive torque is applied, while the Nova Series does not include this feature. The Protector Series is also UL listed and meets ADA requirements.

Marks HI-SECURITY™ cylinders offer enhanced security with features like a patented keyway, multiple security pins, and a hardened steel core. These cylinders are designed to be resistant to picking and drilling attempts.

A single cylinder lockset can be unlocked by a key on the outside or a turnpiece on the inside. A double cylinder lockset requires a key both outside and inside to unlock the door.
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