THA/THAC/THAR/L Adjustable Truss Hangers

Installation

View step-by-step installation instructions

The THA series' extra long straps allow full code nailing and can be field-formed to give top flange hanger convenience.

Designed for 4x2 floor trusses and 4x beams, the THAR/L422 has a standard skew of 45°. Straps can be formed to give top flange hanger convenience. Straps must be bent for top flange hanger installation. PAN nailing helps eliminate splitting of 4x2 truss bottom chords.

Material: See table.

Finish: Galvanized. Some products available in ZMAX® coating; see Corrosion Information.

Installation:

Use all specified fasteners. See General Notes.

The following installation methods may be used:
Top Flange Installation - The straps must be field formed over the header - see table for minimum top flange requirements. Install top and face nails according to the table. Top nails shall not be within 1/4" from the edge of the top flange members.

For the THA29, nails used for joist attachment must be driven at an angle so that they penetrate through the corner of the joist and into the header. For all other top flange installations, straighten the double shear nailing tabs and install the nails straight into the joist.
Face Mount Installation - Install all face nails according to the table. Not all nail holes will be filled on all models. On models where there are more nail holes than required, the lowest 4 face holes must be filled. Nails used for the joist attachment must be driven at an angle so that they penetrate through the corner of the joist into the header.
Alternate Installation - The THA 4x hangers may be installed in a top flange configuration using the tabulated fasteners for face mount installation and achieve the face mount installation loads. Install the tabulated face nails into the face and top of the carrying member. Nails used for the joist attachment must be driven at an angle so that they penetrate through the corner of the joist into the header

Options:

THA hangers available with the header flanges turned in for 3 5/8" (except THA413) and larger, with no load reduction - order THAC hanger.

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THA418	THA29	Typical THA Top Flange Installation	Typical THA29 Face Mount Installation


Typical THA Top Flange Installation on a Nailer (except THA29)	THAC422	THAR/L422

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Double Shear Nailing Side View	Double Shear Nailing Side View Do not bend tab unless otherwise noted	Dome Double Shear Nailing Side View (available on some models) U.S. Patent 5,603,580

These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

16d sinkers may be used to replace 16d commons at 0.85 of table load.
Uplift has been increased for wind or earthquake loading with no further increase allowed; reduce where other loads govern.
Roof loads are 125% of floor loads unless limited by other criteria.
THAR/L422 with 4-10d top nails and 2-10d face nails: When the hanger height is between 9" to 12", the allowable download is 1440 lbs. for DFL and 1210 lbs. for SPF. No further increase allowed.
For top flange installation on a nailer (see detail above), install joist nails straight by bending the double shear tabs.
For single 2x nailers, the following THA hangers can be installed using 10dx1 1/2" top nails and 2-16d face nails with reduced allowable loads as noted: THA418/THA422: 1415 lbs. for DFL, 1215 lbs. for SPF; THA426: 2245 lbs. for DFL, 1930 lbs. for SPF.
Min. Top Flange refers to the minimum length of strap that must be field-formed over the header.
NAILS: 16d = 0.162" dia. x 3 1/2" long, 16dx2 1/2 = 0.162" dia. x 2 1/2" long, 10d = 0.148" dia. x 3" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

					Legacy Reports
	IAPMO ES ER	ICC-ES ESR	CITY OF LOS ANGELES	STATE OF FLORIDA	ICC-ES NER	ICC-ES ER	ICC-ES ES
THA	See specific model numbers for code listings.
THA213		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA218		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA218-2		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA222-2		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA29		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA413		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA418		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA422		ESR-2551 / ESR-2523 *	RR25804	FL10447
THA426				FL11468
THAC	See specific model numbers for code listings.
THAC418		ESR-2551 / ESR-2523 *	RR25804	FL10447
THAL	See specific model numbers for code listings.
THAL422		ESR-2551 / ESR-2523 *	RR25804	FL10447
THAR422		ESR-2551 / ESR-2523 *	RR25804	FL10447

* ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

Download the Simpson Strong-Tie™ AutoCad® Menu, which allows you to insert Ortho views directly into your AutoCAD drawing.

	ORTHOGRAPHIC	PERSPECTIVE
THA	None for this model	THA View 1: DWG \| DXF THA On I Beam: DWG \| DXF THA View 2: DWG \| DXF THA: DWG \| DXF
THA213	THA213: DWG \| DXF THA213 front view: DWG \| DXF THA213 left view: DWG \| DXF THA213 right view: DWG \| DXF THA213 top view: DWG \| DXF	None for this model
THA218	THA218: DWG \| DXF THA218 front view: DWG \| DXF THA218 left view: DWG \| DXF THA218 right view: DWG \| DXF THA218 top view: DWG \| DXF	Truss/Rafter to Masonry/Concrete Connectors: DWG \| DXF Truss/Rafter to Wood Top Plate 1: DWG \| DXF
THA218-2	THA218-2: DWG \| DXF THA218-2 front view: DWG \| DXF THA218-2 left view: DWG \| DXF THA218-2 right view: DWG \| DXF THA218-2 top view: DWG \| DXF	None for this model
THA222-2	THA222-2: DWG \| DXF THA222-2 front view: DWG \| DXF THA222-2 left view: DWG \| DXF THA222-2 right view: DWG \| DXF THA222-2 top view: DWG \| DXF	High Wind-Resistant Construction D19: Girder/Truss To Masonry/Concrete: DWG \| DXF High Wind-Resistant Construction D4: Girder/Truss to Wall Framing: DWG \| DXF Girder/Truss to Concrete Connections 1: DWG \| DXF
THA29	THA29: DWG \| DXF THA29 front view: DWG \| DXF THA29 left view: DWG \| DXF THA29 right view: DWG \| DXF THA29 top view: DWG \| DXF	THA29: DWG \| DXF
THA413	THA413: DWG \| DXF THA413 front view: DWG \| DXF THA413 left view: DWG \| DXF THA413 right view: DWG \| DXF THA413 top view: DWG \| DXF	None for this model
THA418	THA418: DWG \| DXF THA418 front view: DWG \| DXF THA418 left view: DWG \| DXF THA418 right view: DWG \| DXF THA418 top view: DWG \| DXF	None for this model
THA422	THA422: DWG \| DXF THA422 front view: DWG \| DXF THA422 left view: DWG \| DXF THA422 right view: DWG \| DXF THA422 top view: DWG \| DXF	None for this model
THA422-2	THA422-2: DWG \| DXF THA422-2 front view: DWG \| DXF THA422-2 left view: DWG \| DXF THA422-2 right view: DWG \| DXF THA422-2 top view: DWG \| DXF	None for this model
THA426	THA426: DWG \| DXF THA426 front view: DWG \| DXF THA426 left view: DWG \| DXF THA426 right view: DWG \| DXF THA426 top view: DWG \| DXF	High Wind-Resistant Construction D45: Floor to Masonry/Concrete: DWG \| DXF
THA426-2	THA426-2: DWG \| DXF THA426-2 front view: DWG \| DXF THA426-2 left view: DWG \| DXF THA426-2 right view: DWG \| DXF THA426-2 top view: DWG \| DXF	None for this model
THAC	None for this model	None for this model
THAC418	THAC418: DWG \| DXF THAC418 front view: DWG \| DXF THAC418 left view: DWG \| DXF THAC418 right view: DWG \| DXF THAC418 top view: DWG \| DXF	None for this model
THAL	None for this model	None for this model
THAL422	THAL422: DWG \| DXF THAL422 front view: DWG \| DXF THAL422 top view: DWG \| DXF	THAL422: DWG \| DXF
THAR422	None for this model	None for this model