Meets ANSI A156.17 Grade 1 Self closing hinges Dimensions and tolerances conform to ANSI A156.7
.134" +/- .005" on 4.5" x 4.5" size hinges
Steel (ANSI K81071F)
All hinges have templated hole locations for wood or metal doors
1/16" Swage standard which provides 1/16" of clearance between leaves
Each box of 3 hinges contains full set of machine and wood screws
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Spring tension can be adjusted with hex wrench or tension rod (both are provided) spring tension is held by tension pin inserted into tension pin hole
Maximum labeled door size (As set forth by NFPA80) 4'-0" wide x 8'-0" tall x 1 3/4" thick
Meets NFPA80 standard for 3 Hour Fire Doors
NFPA 80 requires minimum of 2 spring hinges to be used on labeled doors
Each box of 3 hinges contains full set of machine and wood screws
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