No set screw either. Remove the glass from the place of attachment as best you can. Clean thoroughly the glass and where you want to bond it to. Etch the glass chemically to enhance the bond. Glue, clamp lightly and allow full curing time before moving the window at all. The proper adhesive and etchant can be obtained from a knowledgable glass shop. It should work, as that's all the factory ever does normally.