Templates: BB35 | BB40 | BB45 | BB50

CP81 – Three Knuckle Concealed Plain Bearing Hinge

Standard Weight: 
3.5″ x 3.5″
4.0″ x 4.0″
4.5″ x 4.0″
4.5″ x 4.5″
5.0″ x 4.0″
5.0″ x 4.5″
5.0″ x 5.0″

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

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

CP81 – 3.5″ x 3.5″ or 4″ x 4″

  • For medium weight doors receiving low frequency service.
  • Hole in bottom tip for easy pin removal.
  • Attractive slim barrel with flush pins and plugs.
  • 3-1/2”, 4” available in square, 5/8” and 1/4” Radius Round Corners.
  • For hospital type, add HT to suffix of part number.
  • Not for use with door closer.
  • All hinges are ANSI template.

CP81 – 4.5″ x 4″ or 4.5″ x 4.5″

  • For medium weight doors receiving low frequency service.
  • Hole in bottom tip for easy pin removal.
  • Attractive slim barrel with flush pins and plugs.
  • Not for use with door closers.
  • For hospital type, add HT to suffix of part number.
  • All hinges are ANSI template.

CP81 – 5″ x 4″ or 5″ x 4.5″ or 5″ x 5″

  • For medium weight doors receiving low frequency service.
  • Hole in bottom tip for easy pin removal.
  • Attractive slim barrel with flush pins and plugs.
  • Not for use with door closers.
  • For hospital type, add HT to suffix of part number.
  • All hinges are ANSI template.

CP81: Available Materials

CP81 (ANSI A8133)
Steel-Polished and Plated or Bonderized and Prime Coated for Painting

CP21 (ANSI A2133)
Brass-Polished and Plated

CP51 (ANSI A5133)
Stainless Steel-Polished and Satin Finish

CP81 – 3.5″ x 3.5″ or 4″ x 4″: Product Specifications

MATERIAL GAUGE:

.123 ± .005 for 3-1/2” x 3-1/2”
.130 ± .005 for 4” x 4”

HEIGHT OF HINGE:

3.50 (+.000/-.015) for 3-1/2” x 3-1/2”
4.00 (+.000/-.015) for 4” x 4”

WIDTH:

3.50 ± .015 for 3-1/2” x 3-1/2”
4.00 ± .015 for 4” x 4”

3.5” STANDARD SCREW SIZE

FHMS – 10-24 x 1/2”
FHWS – 10 x 1”

4” 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 cartons 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.
For 3-1/2 x 3-1/2, 1 screw pack includes (18) machine screws and (18) wood screws.

TEMPLATE INFORMATION:
Template screw hole locations for all 3-1/2” x 3-1/2” full mortise template butts are punched to commercial standard CS9-65.

CP81 – 4.5″ x 4″ or 4.5″ x 4.5″: Product Specifications

MATERIAL GAUGE:
.134 ± .005 for 4-1/2” x 4”
.134 ± .005 for 4-1/2” x 4-1/2”
HEIGHT OF HINGE:
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.

CP81 – 5″ x 4″ or 5″ x 4.5″ or 5″ x 5″: Product Specifications

MATERIAL GAUGE:
.146 ± .005 for 5” x 4”
.146 ± .005 for 5” x 4-1/2”
.146 ± .005 for 5” x 5”
HEIGHT OF HINGE:
5.00 (+.000/-.015) for 5” x 4”
5.00 (+.000/-.015) for 5” x 4-1/2”
5.00 (+.000/-.015) for 5” x 5”
WIDTH:
4.00 ± .015 for 5” x 4”
4.50 ± .015 for 5” x 4-1/2”
5.00 ± .015 for 5” x 5″
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.