The Simpson THGW4-4 Truss Hanger for Girders is an extra-high-capacity bolted hanger engineered for the installation of multi-ply girder trusses. This welded, wraparound-design hanger attaches to a vertical web and utilizes a double-shear configuration to support higher structural loads with exceptional reliability. Manufactured in the United States and finished in Simpson Strong-Tie Gray Paint, the THGW4-4 delivers the precision engineering and durability demanded by professional contractors and structural builders alike.

Key Features

• Extra-High-Capacity Design: Engineered specifically for multi-ply girder truss installations requiring superior load support.
• Wraparound Shape: Unique wraparound geometry provides enhanced structural integrity and elevated load capacity.
• Double-Shear Construction: The double-shear backplate design maximizes load transfer and connection strength.
• Welded Assembly: Fully welded construction ensures consistent strength and dimensional accuracy at every connection point.
• Vertical Web Attachment: Designed to attach directly to a vertical web member for secure, stable girder truss support.
• Bolted Fastening System: Utilizes machine bolts for a robust, high-strength mechanical connection.
• Simpson Strong-Tie Gray Paint Finish: Provides corrosion resistance and a professional appearance suitable for structural applications.
• Made in the USA: Domestic manufacturing ensures adherence to rigorous quality and performance standards.

Specifications

• Model Number: THGW4-4
• Manufacturer Part Number (MPN): THGW4-4
• Brand: Simpson Strong-Tie
• Gauge: 3
• Width: 6 9/16 in.
• Height: 25 in.
• Coating / Material: Simpson Strong-Tie Gray Paint
• Hanger Type: Truss Hanger for Girders, Wraparound Design, Bolted
• Connection Type: Bolted
• Country of Origin: United States

Approved Applications

• Installing multi-ply girder trusses in residential and commercial framing systems
• Structural connections where extra-high load capacity is required at truss-to-girder interfaces
• Vertical web attachment applications demanding double-shear bolt connections
• Any framing scenario requiring a wraparound hanger profile for superior load distribution

Installation Notes

• Install with 10d common nails and 3/4 in. machine bolts.
• All multiple members must be fastened together to act as a single unit.
• Maximum 11 7/8 in. bottom chord in the carrying member to allow for the minimum bolt end distance.
• Bolts must be installed symmetrically when fewer than the maximum number of bolts are used on the backplate.
• Girders must have adequate lateral bracing to prevent excessive displacement due to secondary torsional stresses (refer to ANSI/TPI 1-2014 Section 7.5.3.5).

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.

Frequently Asked Questions

What type of truss is the THGW4-4 designed to support?

The THGW4-4 is specifically engineered for multi-ply girder truss installations. It is not intended for single-ply or standard trusses, but rather for the heavier, combined loads associated with girder truss assemblies.

How does the wraparound design improve performance compared to a standard hanger?

The wraparound geometry of the THGW4-4 provides enhanced structural integrity and elevated load capacity by encasing the connection point more completely. This design, combined with a double-shear backplate, maximizes load transfer and connection strength beyond what a conventional flat hanger provides.

What fastening method does the THGW4-4 use?

The THGW4-4 uses a bolted fastening system with machine bolts, providing a robust, high-strength mechanical connection. It attaches to a vertical web member of the supporting structure.

What finish is applied to the THGW4-4, and what does it protect against?

The THGW4-4 is finished in Simpson Strong-Tie Gray Paint, which provides corrosion resistance and a professional appearance suitable for structural applications.