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THA

Adjustable Truss Hanger

The THA is a one-piece joist hanger supporting trussed rafters and composite
timbers from timber members.
The THA can be installed with a number of fixing options, for greater load
capacity. See table below for fixing options.
Available in seat widths from 38mm to 100mm.

  • Location tab allows easier alignment to the carrying member.
  • Choice of installation specifications to suit wrap-over or face fix.
  • Speed prongs enable positioning of the hanger without nails before completing the install.
  • Nailing schedules are stamped into the strap to provide the correct information to site operatives.
  • The distinctive wide strap enhances the performance of the critical part of the connection by increasing the nail spacing and providing greater bearing area on the supporting girder.
CE Marking
CE Marking
ETA
ETA
EPD
EPD

Product Details

Images

THA configurations.

Features

Material

  • Pre-galvanised mild steel

Avantages

c

Application

Suitable On

  • Solid sawn timber
  • Engineered timber

When to Use

  • Trusses
  • Joists

Technical Data

Product Dimensions

Dimensions

ReferenceConnector Dimensions
Timber size[mm]Joist dimensions - wrap over (N3.75x30 joist nails or N3.75x75 Double Shear Joist Nails)[mm]Product Dimensions[mm]Header holesJoist holesOther
HeightHeaderJoist dimensions - wrap over (N3.75x75 Nails throughout)[mm]A[mm]B[mm]C[mm]D[mm]E[mm]F[mm]t[mm]RoundTypeWeight[kg]
Min[mm]Max.[mm]MinMax.MinMax.Ø4.1
THA383819738122381473822662.559.511464.51.22260.205
THA444419744122441474422362.559.511164.51.22260.205
THA505019750122501475022062.559.510864.51.22260.205
THA7575197751227514775232.562.559.512064.51.22260.227
THA10010019710012210014710022062.559.510864.51.22260.227

Product capacities - Timber to timber - Face fix installation

ReferenceHanger capacity
Product capacities - Timber to timber - Face fix Installation
Number of FastenersCharacteristic Capacities[kN]
JoistHeaderR₁,ₖR₂,ₖ
QtyTypeQtyTypeC27/TR26N3.75x30
N3.75x30
THA386.0N3.75x3020.0*12.43.7
THA446.0N3.75x3020.0*12.43.7
THA506.0N3.75x3020.0*12.43.7
THA756.0N3.75x3020.0*12.43.7
THA1006.0N3.75x3020.0*12.43.7

* Refer to capacity table columns for type of fasteners that can be used on header. Capacities depending on fastener type.

Product capacities - Timber to timber - Face fix installation (Double Shear Joist Nails)

ReferenceHanger capacity
Product capacities - Timber to timber - face fix installation (Double Shear Joist Nails)
Number of FastenersCharacteristic capacities - Timber C27/TR26[kN]
HeaderJoistR₂,ₖR₁,ₖ
QtyTypeQtyTypeN3.75x30N3.75x30
THA3820.0N3.75*6.0N3.75x755.315.4
THA4420.0N3.75*6.0N3.75x755.315.4
THA5020.0N3.75*6.0N3.75x755.315.4
THA7520.0N3.75*6.0N3.75x755.315.4
THA10020.0N3.75*6.0N3.75x755.315.4

* Refer to capacity table columns for type of fasteners that can be used on header. Capacities depending on fastener type.

Product capacities - Timber to timber - Face fix installation (N3.75x75 Nails throughout)

ReferenceHanger capacity
Product capacities - Timber to timber - face fix (installation (N3.75x75 Nails throughout)Product capacities - Timber to timber - Face fix Installation
Characteristic capacities - C27/TR26[kN]Number of FastenersNumber of Fasteners
R₁,ₖR₂,ₖHeaderJoist
N3.75x75N3.75x75QtyQty
THA5020.465.326.06.0
THA10020.465.326.06.0

Product capacities - Timber to timber - Wrap over installation

ReferenceHanger capacity
Product capacities - Timber to timber - Wrap over InstallationCharacteristic Capacities[kN]Characteristic Capacities
Number of FastenersR₂,ₖR₁,ₖR₂,ₖ
HeaderJoistC27/TR26N3.75x30
TopFaceQtyN3.75x30
QtyQty
THA384.08.06.0-10.53.7
THA444.08.06.0-10.53.7
THA504.08.06.0-10.53.7
THA754.08.06.0-10.53.7
THA1004.08.06.0-10.53.7

Product capacities - Timber to timber - Wrap over installation (Double Shear Joist Nails)

ReferenceHanger capacity
Product capacities - Timber to timber - wrap over installation (Double Shear Joist nails)
Number of FastenersCharacteristic capacities - C27/TR26[kN]
JoistHeaderR₁,ₖR₂,ₖ
QtyTypeTopFaceN3.75x30N3.75x30
QtyTypeQtyType
THA386.0N3.75x754.0N3.75*8.0N3.75*16.45.3
THA446.0N3.75x754.0N3.75*8.0N3.75*16.45.3
THA506.0N3.75x754.0N3.75*8.0N3.75*16.45.3
THA756.0N3.75x754.0N3.75*8.0N3.75*16.45.3
THA1006.0N3.75x754.0N3.75*8.0N3.75*16.45.3

* Refer to capacity table columns for type of fasteners that can be used on header. Capacities depending on fastener type.

Product capacities - Timber to timber - Wrap over installation (N3.75x75 Nails throughout)

ReferenceHanger capacity
Product capacities - Timber to timber - wrap over installation (N3.75x75 Nails throughout)
Number of FastenersCharacteristic capacities - C27/TR26[kN]
JoistHeaderR₁,ₖR₂,ₖ
QtyTopFaceN3.75x75N3.75x75
QtyQty
THA506.04.014.020.465.3
THA1006.04.014.020.465.3

Installation

Installation

Installation

2 Installation Configrations :

  • Face Fix - Straps fixed to face of supporting timber.  Face nailing only
  • Wrap Over - Straps folded over top of supporting member.  Face and Top Nailing.

Certification

European Technical Assessment (ETA)

No history available

Environmental Product Declarations (EPD)

ZIP Packages

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Contact

Simpson Strong-Tie U.K.

Simpson Strong-Tie

Cardinal Point, Winchester Road
Tamworth
Staffordshire
B78 3HG
United Kingdom