Anti Ligature Knob and ThumbturnI got a call this week from a facility that needed to replace existing locksets with an anti-ligature product.  If you’re not familiar with anti-ligature hardware, it’s designed for use in mental health or detention facilities, to help protect patients or inmates from self-harm by minimizing the attachment points on the hardware.  Anti-ligature hardware is just one part of a safe environment for facilities with special needs, along with tamper-proof plumbing, mechanical, and electrical devices, break-away shower rods and bars, impact-resistant glass and mirrors, etc.

In the facility I met with today, the existing locks are Schlage L9000 series which made the process very easy.  Schlage has recently introduced the SK1 anti-ligature knob, which can be added to existing L9000 locksets with no change to the door preparation.

Here’s some additional information about the SK1:

  • Quad-grip knob design is easy to operate.
  • Positive stops limit rotation of thumbturn.
  • 20 degree slope on knobs and roses minimizes attachment points.
  • Knob/thumbturn recessed to reduce vertical gaps.
  • Available in US32D satin stainless steel finish, and 630AM antimichrobial finish.
  • Concealed mounting, tamper-resistant.
  • Conversion trim kit available for existing installations.
  • Available for most L9000 series functions.
  • UL listed – 3 hours.
  • ANSI/BHMA Grade 1.

You can download the catalog cut for this product here: Anti-Ligature Catalog Cut, and if you have any questions, just leave a comment and I’ll post the answers.  Schlage is currently exploring an anti-ligature lever, so I’ll post about that when the details are available.

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