Hello.
I have Reynaers patio doors at my property and the handle for the inside door has come off. I can place it back on but it's loose and falls off. Curiously, there is a threaded bolt in the end of the handle spindle place where the handle attaches to the door. The handle has a thread inside. I'm at a loss as to how I thread the bolt into the handle given the spindle is square and means I cannot rotate the handle onto the thread.
Noob question I am sure! Any help greatly appreciated.