Marks USA LifeSaver™ Mortise Locksets are designed with high-performance and ligature-resistant features. For instance, both the Series 5S55 Mortise Knob Locksets and the Series 5SS19 Mortise Lever Locksets are made with durability standards certified by ANSI/BHMA and UL for Grade 1 heavy-duty hardware. Incidentally, Marks USA Lifesaver series offers a complete line of ligature-resistant hardware that matches building code quality with the specialized feature of ligature-resistance.

Applications for Marks USA LifeSaver™ Mortise Locksets include managed liability, accident prevention and security in behavioral & health care institutions (and correctional facilities).
Marks USA LifeSaver™ Mortise Locksets

Performance Specifications:

Life Test: 1,500,000 cycles minimum.
ANSI Test: Meets or exceeds all operational and security tests of ANSI specifications A156.13-2005 for series 5000, Grade 1

Trim Specifications:

Exterior & Interior Trim:
  • Solid stainless steel interior and exterior tapered knobs or levers recessed into thru-bolted roses.
  • Safety knobs with recessed grip and finger indents (Patent #D587556). Safety lever for handicapped access on clutch operated Mortise lock.
  • Ergonomically designed grooved turn knob for deadbolt functions
Cylinder: Solid stainless steel cylinders with solid stainless steel security collars; Optional HI-SECURITY™ cylinders available
Strike: 4-7/8” curved lip stainless steel with tamper-proof screws
Door Thickness: 1-3/4” standard; Extended range available
Door Prep: ANSI A115.1 lock face cutout, with 2-1/8” through hole for knob/rose assembly

Lock Specifications:

  • 5 Series (2-3/4” Backset)
  • 55 Series (2-1/2” Backset)
Lock Front:
  • Adjustable bevel steel backplate 1-1/4” x 8″ x 7/64” thick
  • Cover plate 1/16” thick with tamper proof screws
  • Solid stainless steel with anti-friction latch lever
  • 3/4” throw (reversible)
Levers: Solid cast stainless steel. Levers Rotate up & down freely in locked or unlocked position
Aux. Deadlatch: 1/2” throw, (reversible)
Case: Stamped steel 3/32” thick, zinc dichromate finish
Hubs: Steel, 9/32” on diamond, 5/16” on square w/security separator
Hub Lock Arm: (to lock hub) Steel 1/8” thick
Spindles: Independent spring-loaded spindles

Available in Standard & HI-SECURITY™ IC Core Models:
Interchangeable core models for 6 or 7 pin cores (not included). Accepts Marks, Marks HI-SECURITY™, Medeco®, KeyMark™, Falcon, Schlage® small format & Best®. IC Core tailpieces ARE included.

To place an order for Marks USA LifeSaver™ Mortise Locksets or for a quote, contact your local IDN Branch.

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Kwame Shorter is the Digital Communications and Website Specialist at IDN, Inc.