The Simpson GA1 2-3/4 in. 18-Gauge Galvanized Gusset Angle is a small, versatile connector engineered to improve corner stability in framing and repair applications. The integrated gusset is engineered and tested to increase strength for lateral and uplift loads, delivering a more reliable connection than angled nailing or screw fastening alone. Whether you are reinforcing 90 deg.-angle framing joints or tackling miscellaneous building and repair projects, the GA1 installs easily with 10d common nails or, for increased load capacity, with Strong-Drive SD Connector screws.

Key Features

• Small flanges sized for narrow framing faces - fit the connector on the narrow face of a 2x member where standard hardware would not seat properly, giving you more placement options in tight framing conditions.
• Engineered gusset built into the angle - resists both lateral and uplift loads, producing a structurally stronger corner connection than angled nailing or screw fastening alone.
• Ideal for 90 deg.-angle connections - holds framing joints square and consistently aligned, reducing the chance of racking or shift over time.
• Compatible with nails or Strong-Drive SD screws - install with 10d common nails for standard applications, or upgrade to #9 x 1 1/2 in. Strong-Drive SD screws when higher load capacity is required.
• Made from 18-gauge steel - provides a solid, dependable connector body suited to structural framing and general repair work without adding unnecessary bulk.
• G90 zinc galvanized finish - delivers extra corrosion resistance, making the connector appropriate for applications where moisture exposure is a concern.
• Versatile enough for miscellaneous building and repair projects - a single connector type handles a wide range of corner-reinforcement tasks, simplifying your fastener inventory on the job.

Why This Product

• Stronger than traditional fastening methods - the tested gusset geometry transfers lateral and uplift forces more effectively than angled nailing or direct screw fastening, giving framed corners measurably better holding power without extra hardware.
• Designed to fit where other connectors cannot - the compact flanges seat on the narrow face of a 2x member, making the GA1 a practical solution for framing conditions where space is limited and repositioning lumber is not an option.
• Built-in corrosion resistance for long-term performance - the G90 zinc galvanized coating protects the steel in moisture-prone environments, helping the connection maintain its integrity over the life of the structure.
• Flexible installation for varying load demands - the choice between 10d common nails and Strong-Drive SD Connector screws lets you match the fastening method to the load requirement, so the same connector works across both light repair and higher-demand framing applications.

Specifications

• Model Number: GA1
• Gauge: 18
• Length: 2-3/4 in.
• Coating/Finish: Zinc Galvanized, G90
• Fastener Options: Install with 10d common nails or #9 x 1-1/2 in. Strong-Drive SD screws
• Country of Origin: United States

Approved Applications

• Reinforcing 90 deg.-angle framing connections
• Installation on the narrow face of 2x framing members
• Miscellaneous building and repair projects requiring corner stability
• Applications requiring resistance to lateral and uplift loads

Downloads and Resources

• View Specifications

Frequently Asked Questions

What fasteners can be used to install the GA1 Gusset Angle?

The GA1 can be installed with 10d common nails or #9 x 1-1/2 in. Strong-Drive SD Connector screws. Using Strong-Drive SD screws is recommended when increased load capacity is needed.

What makes the GA1 stronger than standard angled nailing or screw fastening?

The GA1 features an engineered and tested gusset built into the angle. This gusset increases strength for both lateral and uplift loads, providing a more reliable connection than angled nailing or screw fastening alone.

Can the GA1 be used on narrow framing members?

Yes. The GA1 features small flanges specifically designed to allow installation on the narrow face of 2x framing members, making it a flexible solution for tight framing conditions.

Is the GA1 suitable for outdoor or moisture-exposed applications?

The GA1 is coated with a G90 zinc galvanized finish, which provides extra corrosion resistance, making it appropriate for applications where added protection against moisture and corrosion is needed.

Related Products

• Nails 0.148" x 1-1/2"
• #9 x 1 1/2"

Note: Product dimensions and/or Screw or Bolt holes may differ from picture.