Marks USA Institutional Anti-Ligature Cylindrical Passage Door Lock 5SS55N-32D

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Marks USA Institutional Anti-Ligature Cylindrical Passage Door Lock 5SS55N-32D


The ligature-resistant MARKS USA® LifeSaver™ mortise knob and lever set is ideal for institutional, educational, and healthcare applications. Keyless set is designed for passage doors. Solid stainless steel interior and exterior tapered knob is recessed into thru-bolted roses. Adjustable bevel steel backplate and cover plate with tamperproof screws. 


Latch by knob either side, always open.

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Exterior & Interior Trim:

• Solid stainless steel interior and exterior tapered knobs recessed into thru-bolted roses

• Specially designed finger indented safety knobs with recessed grip and ergonomically designed integral grooved turn knob for elderly and handicapped access (Patent D#587556).

• Needle bearings ensure smoothness of operation