I have a Majestic Vermont Castings RHE 32 gas fireplace and need to remove the extremely cloudy interior glass to clean it. As described in the manual there are "two machine screws" which need to be removed to get the glass out. However I don't know what to remove them with. Theyjust look like two screws with sunken holes in the middle. Does anyone know what type majestic used? Thx.