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Window Friction Hinges A friction hinge is equipped with a mechanism into it that generates resistance to movement. This kind of hinge can help hold lids, doors and flaps, as well as panels and windows in place. It also helps stop springback and slamming. These Yale Defender egress friction stay hinges are easy to clean and allow full opening of windows in conformity with Building Regulations document B1. They can be used with both side hung and top hanging windows. Types There are a variety of hinges for win