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HTHGQ Extra-Heavy Truss Hanger for Girders, Quick-Install


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The HTHGQ is a high-load girder hanger designed to carry composite lumber up to 5-ply girder trusses. For high load capacities and easy installation compared to bolts, this heavy truss hanger uses Strong-Drive® SDS Heavy-Duty Connector screws.

Key Features

  • Strong-Drive SDS Heavy-Duty Connector screws are included to help transfer the load between the plies of the supporting girder when they penetrate all plies
  • Increased allowable loads available when wider vertical web is used


  • 3 ga.


  • Simpson Strong-Tie gray paint


  • Use all specified fasteners; see General Notes.
  • Strong-Drive SDS Heavy-Duty Connector screws are supplied for all round and triangle holes.
  • All multiple carried and carrying members must be fastened together to act as a single unit.
  • The screw length should be equal to the assembly thickness of the supporting girder. For applications where the length of the supplied SDS screws does not match the thickness, appropriate-length SDS screws should be used instead.
  • Girders must have adequate lateral bracing to prevent excessive displacement due to secondary torsional stresses (refer to ANSI/TPI 1-2014 Section

Related Literature

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Ga. W (in.) H (in.) B (in.) Coating/Material Packaging Qty.
HTHGQ2-SDS 3 3 5/16 30 6 Simpson Strong-Tie Gray Paint 1
HTHGQ3-SDS 3 4 15/16 30 6 Simpson Strong-Tie Gray Paint 1
HTHGQ4-SDS 3 6 9/16 30 6 Simpson Strong-Tie Gray Paint 1
HTHGQ5-SDS 3 8 1/8 30 6 Simpson Strong-Tie Gray Paint 1

Allowable Loads for Heavy Multi-Ply Truss Girder

Allowable Loads for Heavy Multi-Ply Truss Girder
  1. Tabulated allowable loads must be selected based on duration of load as permitted by the applicable building code.
  2. Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
  3. Wind (160) is a download rating.
  4. Connector must be installed centered on a minimum 2x10 vertical web.
  5. A minimum three-ply carrying member is required for the tabulated loads.
  6. Carrying truss plies must be adequately fastened together as determined by the designer.
  7. Strong-Drive® SDS Heavy-Duty Connector screws may be installed through metal truss plates as approved by the truss designer, provided the requirements of ANSI/TPI 1-2014, Sections and 8.9.2 are met (predrilling required through the plate using a 5/32" bit maximum).

Code Reports & Compliance