Invisible Concealed Single Door Hinge In Black E-Coat Finish, UL Fire Rated 90/180 Minutes, Fits Wood Core And Hollow Metal Doors, Square Edge For Metal Doors, Hidden, Nonintrusive Door Hardware For Seamless Openings

Invisible Concealed Door Hinge for Fire-Rated Metal Doors
✔️ 1 each pack, UL 90/180 min fire rated, fits wood core & hollow metal doors

The invisible concealed hinge is a fire-rated door hardware solution designed for clean, nonintrusive openings on hollow metal and wood-core doors. It’s ideal for commercial entrances and any doorway where a hidden, modern look matters.

✅ UL Fire Rating 90/180 minutes
✅ Fits wood core and hollow metal doors
✅ Eight mounting holes for secure install
✅ Weight 3.85 lbs

💡 What is the purpose of a concealed door hinge in fire-rated doors?

Handy for keeping hardware hidden while meeting safety standards.

- Non-intrusive hinge for fire-rated doors
- Fits hollow metal and wood-core doors
- UL 90/180 minute fire rating supports code compliance
- Maintains door alignment and a clean look