Simpson Strong-Tie FSB Bypass Framing Fixed-Clip Strut Connector, 3.5 in. x 18 in., 16-Ga Galvanized Steel, Box of 25

The Simpson Strong-Tie FSB is the fixed-clip version of the SSB slide-clip strut connector, made from 54 mil (16 ga.) G90 galvanized steel. This 3.5 in. x 18 in. bypass framing connector is commonly used at the bottom flange of a steel beam to accommodate large standoff distances for bypass curtain-wall studs. One box contains 25 connectors.

Key Features:

• Bypass framing: Fixed-clip connector designed for bypass curtain-wall stud applications.
• Large standoff: Commonly used at the bottom flange of a steel beam to accommodate large standoff distances.
• 16-ga steel: Made from 54 mil (16 ga.) steel for rigid cold-formed steel construction.
• G90 galvanized: Galvanized (G90) finish for corrosion resistance.
• Trimmable design: If the FSB intrudes on interior space, it can be trimmed while maintaining a 1/2 in. minimum edge distance to the nearest anchor.
• Box of 25: Each box (FSB3.518-R25) contains 25 connectors.

Specifications Table:

Coverage & How Much You Need:

One box of 25 connectors outfits 25 stud-to-structure fixed-clip connections. Size your order by the number of bypass studs requiring a fixed strut clip.

Fit and Compatibility:

Part of the Simpson Strong-Tie rigid connector line for cold-formed steel construction; it is the fixed-clip counterpart to the SSB slide-clip connector. Anchors and screw fasteners are sold separately and must match the specified type and number per the load tables.

Frequently Asked Questions (FAQ):

Q: What is included?
A: One box containing 25 FSB3.518 fixed-clip strut connectors, each 3.5 in. x 18 in. in 16-ga galvanized steel.

Q: What is the difference between FSB and SSB?
A: The FSB is the fixed-clip version of the SSB slide-clip strut connector; the FSB does not allow sliding deflection.

Q: Where is this connector used?
A: It is commonly used at the bottom flange of a steel beam to accommodate large standoff distances for bypass curtain-wall studs.

Q: What fasteners do I need?
A: Use the specified type and number of anchors to the structure and screw fasteners to the stud per the Simpson load tables.

Q: Can it be modified on site?
A: Yes, if it intrudes on interior space it can be trimmed, keeping at least 1/2 in. edge distance from the center of the nearest anchor to the trimmed end.

Q: Is it corrosion resistant?
A: Yes, the connector is made from 54 mil (16 ga.) steel with a G90 galvanized finish.

Expert Verdict — Reviewed by the SuperArbor Pro Desk

Choose the FSB where bypass curtain-wall studs must connect to structure over a large standoff and no deflection slip is required; specify the SSB slide-clip instead where vertical building movement must be accommodated. Always match anchors and screws to the published load tables for the required loads. Keep a few spare connectors on hand for trimmed or field-modified conditions.

Structural connector installation must follow the manufacturer's load tables and be performed by qualified installers using the specified anchors and fasteners; consult the project engineer of record.

Order the Simpson Strong-Tie FSB 3.5 x 18 fixed-clip strut connector box of 25 for your bypass framing project.