Trudoor-BB-US26D-4.5-x-4.5-Full-Mortise-Five-Knuckle-Hinge-for-Commercial-Doors
BB-US26D
Trudoor-BB-US26D-4.5-x-4.5-Full-Mortise-Five-Knuckle-Hinge-for-Commercial-Doors
BB-US26D
Trudoor's Choice for standard hinges

Trudoor BB – 4.5″ x 4.5″ Ball Bearing Hinge

Usually Ships: Same Day
  • Meets ANSI A156.2
  • .134 standard weight, ball bearing
  • Five knuckle, template hole pattern

Available Options:

Product Overview

Trudoor BB Series 4-1/2″ x 4-1/2″ Full Mortise Five Knuckle Commercial Hinges, Standard Weight, Square Corner

BB Series butt hinges are perfect for nearly any commercial wood or metal door application, as they exceed all code requirements and offer value, durability, and consistent performance.

  • Meets ANSI A156.2 – Dimensions and tolerances conform to ANSI – A156.7
  • 5 knuckle, templated hole locations for wood or metal doors & frames
  • 1/16” swage standard which provides 1/16” of clearance between leaves
  • Packed with 1/2” x 12-24 machine and 1-1/4” x #12 wood screws (use #3 driver bit)

Cross Reference

BB Series hinges can be specified as a substitute or direct replacement for: Bommer BB5000 / BB5002, Cal-Royal BB31, Design Hardware BB5, Doormerica DH-BB179, Ecco ECBB1100 / ECBB1101, Hager BB1279 / BB1191, Ives 5BB1, Mac Pro MPB79 / MPB91, McKinney TA2314/TA2714 / TB2314/TB2714, PBB BB81 / BB51, Best/Stanley FBB179 / FBB191

Brand

Finishes

652 Satin Chrome, F-BLK Flat Black
Hinge Type

Full Mortise
Size

4.5" x 4.5"
Knuckles

Five
Bearings

Ball Bearing
Material

Steel (ANSI A8112)
Gauge

0 .134
ANSI/BHMA Standard

Meets ANSI/BHMA A156 .1
Usage

Medium Duty
Fire Rating

Approved for most types of fire doors up to 4’ x 10’ – refer to NFPA80

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Trudoor BB – 4.5″ x 4.5″ Ball Bearing Hinge