Height: 100 mm Cranked Face: 38 mm Knuckle Diameter: 14 mm features: 100 x 124 x 3mm Triple knuckle projection butt hinge Maintenance free, guaranteed for 25 years c/w M5 x 30mm screws Appropriate for use with backcheck door closers Maximum adjusted door weight 80kg Minimum door thickness 44mm 304 stainless steel Purpose: To improve access through door openings by carrying the door leaf clear of the effective opening width. Aids access, for example, for hospital beds, wheelchairs allowing free passage whilst helping to prevent damage to the door itself. Operation: The swing clear hinge when opened only 95 degrees will position the door outside the line of the door frame.