Templates: 4B45

4F81 – Five Knuckle Concealed Bearing Hinge

HEAVY WEIGHT: 4.5″ x 4.0″ or 4.5″ x 4.5″

GENERAL PRODUCT INFORMATION: PBB, Inc. template hinges are manufactured to close tolerances and meet all specifications and requirements set by the American National Standards Institute (ANSI).

  • For heavy weight doors receiving high frequency service.
  • Concealed bearing for trouble free long life application.
  • Hole in bottom tip for easy pin removal.
  • Ball bearing hinges must be used on doors in conjunction with door closers and on all fire rated openings.
  • For hospital type, add HT to suffix of part number.
  • Non-rising removable pin.
  • All hinges are ANSI template.

HINGE SWAGING: A standard swaging of our standard weight full mortise hinge when closed to parallel position provides a 1/16” clearance between leaves.

4F81: Available Materials

4F81 (ANSI A8111)
Steel-Polished and Plated or Bonderized and Prime Coated for Painting

4F21 (ANSI A2111)
Brass-Polished and Plated

4F51 (ANSI A5111)
Stainless Steel-Polished and Satin Finish

4F81: Product Specifications

MATERIAL GAUGE:
.180 ± .005 for 4-1/2” x 4”
.180 ± .005 for 4-1/2” x 4-1/2”
HEIGHT:
4.50 (+.000/-.015) for 4-1/2” x 4”
4.50 (+.000/-.015) for 4-1/2” x 4-1/2”
WIDTH:
4.00 ± .015 for 4-1/2” x 4”
4.50 ± .015 for 4-1/2” x 4-1/2”
4.5” STANDARD SCREW SIZE
FHMS – 12-24 x 1/2”
FHWS – 12 x 1-1/4”

PACKAGING INFORMATION:
One hinge per plastic bag, 3 hinges and 1 screw pack per unit carton.
16 unit carton or 48 hinges per master shipping carton.
1 screw pack includes all machine screws (24), and 1/2 wood screws (12). ATMS & AWS also available.