Upvc Window Friction Hinge Upvc window Friction Hinge sold as a pair, one left and one right. Manufactured from high grade stainless steel Available in both top hung and side hung applications Stack heights – 13mm or 17mm Top hung sizes – 8”, 10”, 12”, 16”, 20” and 24” 12” and 16” can be used for side and top hung windows Top hung recommended maximum sash weight – 50 kg Side hung recommended maximum sash weight – 22 kg Operational reliability – cycle tested to 20,000 cycles Weather resistance – tested to BSEN 1670 Grade 4, achieving 240 hours salt spray
