The Simpson FSB3.518 Bypass Framing Fixed-Clip Strut Connector by Simpson is a rigid cold-formed steel connector engineered to deliver the increased load capacity that steel framing applications demand. As the fixed-clip version of the popular Simpson SSB slide-clip strut connector, the FSB is specifically designed for use at the bottom flange of a steel beam, where it accommodates large standoff distances for bypass curtain-wall studs. Whether you are working on curtain-wall construction or other cold-formed steel projects requiring dependable support for load-bearing walls, this connector provides a non-adjustable, rigid connection built to perform. This package includes 25 connectors, making it a practical choice for ongoing or large-scale framing work.

Key Features

• Fixed-clip design for rigid connections - unlike adjustable slide-clip alternatives, the fixed-clip configuration provides a stable, non-shifting connection where positional consistency is critical.
• Trimmable profile with a minimum 1/2 in. edge distance requirement - if the connector intrudes on interior space, it can be trimmed to fit, giving installers flexibility without sacrificing structural integrity.
• Made from 54 mil (16 ga.) steel - heavy-gauge construction supports the load demands of cold-formed steel framing and load-bearing wall applications.
• Zinc Galvanized (G90) finish - corrosion-resistant coating extends the service life of the connector in demanding construction environments.
• 25 connectors per package - purchasing in quantity reduces downtime and keeps framing crews supplied throughout a project.

Why This Product

• Purpose-built for bypass curtain-wall framing - the FSB is specifically designed to handle large standoff distances at the bottom flange of a steel beam, addressing one of the most common challenges in bypass curtain-wall stud installation.
• Rigid, predictable performance where it matters - the fixed-clip configuration eliminates the variability of sliding designs, making this connector the right choice when a non-adjustable, structurally consistent connection is required.
• Field-adaptable without compromising standards - the ability to trim the connector while maintaining the required 1/2 in. edge distance means installers can work around spatial constraints without abandoning code-compliant installation practices.
• Corrosion resistance built in from the start - the G90 galvanized finish means the connector arrives ready to perform in real-world steel construction conditions without the need for additional surface treatment.

Specifications

• MPN: FSB3.518-R25
• Brand: Simpson Strong-Tie
• Dimensions: 18 in. length x 3-1/2 in. high
• Gauge: 16 ga. (54 mil)
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Quantity: 25 per package
• Install With: Fasteners may vary by application; refer to Simpson Strong-Tie catalog or strongtie.com
• Country of Origin: United States

Approved Applications

• Curtain-Wall Construction

Frequently Asked Questions

What is the difference between the FSB and the SSB connector?

The FSB connector is the fixed-clip version of the popular Simpson Strong-Tie SSB slide-clip strut connector. While the SSB features a sliding clip design, the FSB uses a fixed-clip configuration, making it well suited for applications where a rigid, non-adjustable connection is required.

Where is the FSB3.518 connector typically used?

The FSB connector is commonly used at the bottom flange of a steel beam to accommodate large standoff distances for bypass curtain-wall studs, making it a go-to choice for curtain-wall construction projects.

Can the FSB connector be trimmed if it extends into interior space?

Yes. If the FSB intrudes on interior space, it can be trimmed; however, the trimmed part shall allow an edge distance of 1/2 in. or greater from the center of the nearest anchor to the end of the trimmed part.

What material and finish does the FSB3.518 connector use?

The FSB3.518 connector is made from 54 mil (16 ga.) steel and features a Zinc Galvanized (G90) finish for corrosion resistance, ensuring durability in demanding cold-formed steel construction environments.

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