This concealed thumbturn features a decorative beehive cover which matches a number of other products in our range and adds a contemporary edge to a traditional looking product. Maximum door thickness: 67mm Supplied with matching SS bolt through fixings & SS wood screws. Each of our thumbturns have been designed to complement our range of mortice knob sets and lever on rose handles. Fixing Plate: 53mm dia. x 8mm Thumbturn Size: 36mm x 15mm Projection: 45mm Spindle Size: 5mm