SOSS Invisible Single Door Hinge

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About This Product

SOSS now offers a complete line of fire-rated invisible hinges. Whatever the door or opening, there is a SOSS hinge for you. Whether your doorway is made of wood or metal it is rated 20 minutes or 3 hours. It will comply and give you the "uniquely invisible" hinge that you expect from SOSS.

Features

Frames constructed with Georgia Pacific FSM-1 or FSM-2
Use at least one fire-rated hinge for every 20" of door height
Used on hollow metal, sheet metal, tin clad, and steel composite swinging type fire doors
Can be used on wood core doors and frames rated up to 20 minutes
Frames rated up to and including 3 hours
One hinge for every 60 lbs
Not to be used on a door that normally is held open
Alloy steel, unplated finish
90/180 min UL Fire Rating