Concealed mounting in top of door. Hold open facility which can be disengaged to act as a stop only. Reversible, non-handed pattern. Maximum door opening 110°. Minimum door thickness 35mm. • 4000 Series mortice fixing – The knurled roller is inaccessible because the stay is mounted in the top of the door, but the hold-open device can still be toggled by using a screwdriver.
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