The Simpson LGT4-SDS3 LGT 4-Ply Girder Tiedown with Strong-Drive SDS Screws is a Simpson connector engineered for moderate-load capacity applications involving multi-ply girders and trusses. Its low-profile design delivers a clean, flush connection to studs, making drywall installation straightforward and unobstructed. Flexible enough to be installed on either the inside or outside of the wall, this light girder tiedown also delivers exceptional bearing enhancement where heavy download loads are a factor - making it a practical choice for both new construction and retrofit framing projects.

Key Features

• 4-ply construction - sized for multi-ply girder and truss assemblies, giving builders a single connector solution for heavier structural members
• 12-gauge steel - provides a reliable strength foundation suited to the connector's moderate-load and heavy download bearing applications
• G90 zinc galvanized coating - adds extra corrosion resistance, making the connector appropriate for demanding or moisture-prone environments
• Low-profile design - sits flush against studs so drywall can go up cleanly without requiring additional shimming or trimming around the connector
• Inside or outside wall installation - gives framers the flexibility to position the connector wherever the job layout demands, without a separate part number
• Suitable for new or retrofit applications - eliminates the need to source a different tiedown when working on existing structures, saving time and reducing hardware inventory
• Includes (16) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws - the primary fasteners arrive with the connector, so installation can begin without a separate fastener order

Why This Product

• Versatile fastening compatibility - works with the included Strong-Drive SDS screws alongside 16d sinkers or 3/8 in. x 5 in. Titen HD anchors for concrete and GFCMU, covering a wide range of substrate conditions under one connector design
• Dual-purpose load performance - handles both moderate-load lateral tie applications and exceptional bearing enhancement for heavy download scenarios, reducing the need for supplemental hardware in demanding framing conditions
• Finish built for longevity - the G90 galvanized coating goes beyond a basic protective layer, making this tiedown a dependable long-term choice where corrosion is a real concern
• Straightforward installation in new or existing construction - the connector's simple design and flexible wall-side positioning mean faster installs on framing projects of all types, from ground-up builds to structural retrofits

Specifications

• Model Number: LGT4-SDS3
• Ply: 4-ply
• Gauge: 12
• Coating/Finish: Zinc Galvanized, G90
• Country of Origin: United States
• Install With: (16) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws (included) and (a) 16d sinkers or (b) 3/8 in. x 5 in. Titen HD anchors for concrete and GFCMU

What's Included

Each pack contains (1) LGT4-SDS3 Girder Tiedown, (16) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws.

Frequently Asked Questions

What type of applications is the Simpson LGT4-SDS3 designed for?

The LGT4-SDS3 is designed for moderate-load capacity applications involving multi-ply girders and trusses. It also provides exceptional bearing enhancement for heavy download applications.

Can the LGT4-SDS3 be used in retrofit projects?

Yes. The LGT4-SDS3 is suitable for both new construction and retrofit applications, offering installation flexibility on either the inside or outside of the wall.

What corrosion protection does the LGT4-SDS3 have?

The LGT4-SDS3 features a G90 zinc galvanized coating, which provides extra corrosion resistance for demanding environments.

What fasteners are required to install the LGT4-SDS3?

Installation requires (16) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws, which are included with the connector. Additional fasteners needed are either (a) 16d sinkers or (b) 3/8 in. x 5 in. Titen HD anchors for concrete and GFCMU applications.