ANSI : Meets ANSI A156.1 – Dimensions and tolerances conform to ANSI – A156.7
Gauge of Metal : .134″ for 4.5″ x 4.5″
Base Material : Steel (ANSI A8112) or Stainless Steel (Grade 304 standard)(ANSI A5112)
Design & Templating : 5 Knuckle Design & Templated hole locations for wood or metal doors & frames
Fire Door Use : Approved for most types of fire doors up to 4′ x 10′, 8′ x 10′ pairs
Swaging : 1/16″ Swage standard which provides 1/16″ of clearance between leaves
Security NRP : NRP – Non removable pin available
Pin : Equipped with easily seated non-rising pin with button head & plug
Square Corner only for 4.5" x 4.5" Hinges
Ball Bearing : Each hinge has 2 sets of maintenance free non detachable ball bearings
Fasteners : Each box of 3 hinges contains full set of machine and wood screws
Spring : Assist in Closing of Door, Spring tension can be adjusted with hex wrech or tension rod (both are provided). Spring tension is held by tension pin inserted into tension pin hole
