These SOSS© alloy steel invisible hinges are perfect for doors where flush fit, compact size, and smooth operation are essential. SOSS© Invisible Hinges are single-action hinges, open a full 180°, and are for use in wood or metal applications. Wood screws included.

Fire Rating information: #220AS SOSS� Invisible Hinges can be used on hollow metal, sheet metal, tin clad, and steel composite swinging-type fire doors and frames with a fire rating of up to and including 3 hours. They can also be used on wood core doors and frames rated up to 20 minutes. Additionally, they can be used on wood/plastic composite doors and frames constructed with Georgia Pacific FS 1 or FS 2 banding for a rating up to and including 90 minutes.

Use at least one fire-rated hinge for every 20" of door height or portion thereof, or one hinge for every 60 lbs. or fraction thereof, whichever calculation demand more hinges.

For more information on installing SOSS© invisible door hinges, including information on how to use the template and router guide (three each and four each), check out the SOSS© hinge installation guide video.

The SOSS© Alloy Steel Invisible Hinge model #220AS is a full-size door hinge for use in wood or metal applications

Notes:
Fire rating of 90/180 min.
For wood or metal door applications (see product description for more info)
Unplated
Wood screws included
See attached .pdf files for additional information
Check out the SOSS© hinge installation guide video.

*This product ships directly from the manufacturer. Time to ship is 2-3 days.*