Restrictive movement cylinder with Key Override 

The innovative design not only guards against the door being locked from within the room but also ensures that authorised key operation from the external side is maintained even if the internal Thumbturn is held by the occupant in an attempt to prevent access 

• Innovative solution.
• Integral Clutch mechanism for authorised key override.
• Non-handed can be set on site for clockwise or anticlockwise turning.
• Easy retrofit.
• Available in all sizes from 31.5mm

Kaba Anti-ligature Thumbturn 

Combing safety with security 

• Tested independently to DHF TS001 specification making the Kaba anti-ligature Thumbturn Grade 4 for safety and Grade 2 corrosion resistant.
• Unique ‘stop’ mechanism ensures key can be freely inserted and turned should knob be held from within (Kaba cylinders only)
• Unique staff safety feature, in a duress situation the internal knob is disabled by insertion of key until assistance arrives
• Rounded Thumbturn shape to reduce ligature points
• Secure bolt-through fixings provide strength and resistance in abusive environments
• Clutch mechanism provides key override functionality at all times