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HUC Heavy Concealed-Flange Face-Mount Joist Hanger

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The HUC is a concealed flange (face flanges turned in) version of the HU. This heavy-duty, concealed-flange connector is designed for schools and other structures requiring additional strength, longevity and safety factors. HUC hangers may be installed on a masonry/concrete wall as described below.

Key Features

  • Extra optional triangle holes for additional load
  • HUC-series hangers are tested, load rated and code compliant


  • 14 ga. (68 mil)


  • Galvanized


  • Attach the hangers to concrete or GFCMU walls using hex-head Titen® 2 screws. Titen screws for GFCMU (1/4″ x 2 3/4″ — model TTN2-25234H) and for concrete (1/4″ x 1 3/4″ — model TTN2-25134H) are not provided with the hangers.
  • Drill the 3/16″-diameter hole to the specified embedment depth plus 1/2″.
  • Alternatively, drill the 3/16″-diameter hole to the specified embedment depth and blow it clean using compressed air.
  • Caution: Oversized-diameter holes in the base material will reduce or eliminate the mechanical interlock of the threads with the base material and will reduce the anchor’s load capacity.
  • Titen Installation Tool Kits are available. They include a 3/16″ drill bit and hex-head driver bit (model TTNT01-RC); a 3/16″ x 4 1/2″ drill bit is also available (model MDB18412).
  • A minimum edge distance of 1 1/2″ and minimum end distance of 3 7/8″ is required for full uplift load. See image gallery for installation detail.
  • Where no uplift load is required, a minimum end distance of 1 1/2″ is permitted.
  • For solid sawn lumber application, see HUC in Face-Mount Hangers for Solid Sawn Lumber.
  • For attachment to cold-formed steel, see HUC in Joist Framing Connectors for Cold-Formed Steel Construction.
  • HU/HUC Load Tables for Concrete / GFCMU.
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