Simpson Strong Tie TJC37 Jack Truss Connector 80mm x 90mm x 90mm Z275 Galvanised


STTJC37 is a versatile connector for jack trusses. Adjustable from 0 to 85 degree (shipped with 67.5-degree bend). Nail hole locations allow for easy installation.


  • Minimum nailing option provides faster installation and lower installed cost
  • No bevel cut required
  • Can be used back‑to‑back on a single member (a load reduction applies, see table notes)
  • Compatible with Strong-Drive® SD screws



  • Use all specified fasteners
  • TJC37 can be installed filling round holes only, or filling round and triangle
  • holes for maximum values
  • To reduce the potential for splitting, install the TJC with a minimum 5mm edge distance on the chord members
  • Position the jack truss on the inside of the bend line with the end of the jack truss flush with the bend line
  • Bend the TJC to the desired position (one bend cycle only)
  • Attachment of TJC to the top chord requires the Designer to check connection geometry for placement on both carried and carrying chord members
  • Supported jack member is a minimum 39mm thick



Brand Simpson Strong Tie

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