I have a sophisticated hinge system on my double glazing.
One side of the hinge attaches to the window and the other side of the hinge runs in a metal track (aluminium?) which is screwed to frame.
I need to remove the track to replace the hinge because a spacer is broken but I cannot turn some of the screws. The screws 'look' like stainless steel.
I have sprayed with WD40, Tapped the Screw with hammer, tried to tighten.
Any advice would be very welcome.
Brendan