The Securistyle Defender Restricted Top-Hung Friction Hinge is a premium window hinge designed to enhance safety and functionality in residential settings. Available in 12", 16", 20", and 24" lengths with 13 mm or 17 mm stack heights, it suits a wide range of top-hung PVC-u window installations. It features a built-in restrictor that limits window opening to help prevent accidental falls, making it ideal for homes, apartments, and multi-occupancy buildings. A quick-release lever allows the hinge to disengage when needed, enabling the sash to open fully for cleaning or ventilation, and the restrictor automatically re-engages when the window is closed.
Engineered for long-term performance, the Yale Defender Restricted friction hinge offers several design innovations that ensure reliability and ease of use. Its robust cam friction device prevents friction screw misuse, while the asymmetric location system guarantees consistent alignment and closure. The hinge's extended enclosed end cap and vent arm design improve weather sealing and draught proofing, meeting BS 6375-1 standards, while the slot-hole-slot fixing pattern allows secure installation into PVC-u reinforcement with easy adjustment. Tested to 30,000 cycles, corrosion tested to 96 hours, and both Secured by Design approved and BBA certified, it provides peace of mind that it will perform safely and smoothly for years to come.
Did you know? Roughly 4,000 children are injured each year from falls out of windows. Installing a restricted friction hinge helps prevent these accidents while still allowing safe ventilation and easy cleaning access.