The Simpson S/HDU11 S/HDU 16-5/8 in. Holdown for Cold-Formed Steel is a Simpson Strong-Tie engineered connector designed for use with cold-formed steel framing to anchor shearwalls to the foundation and resist overturning forces. Combining performance with ease of installation, the S/HDU series features pre-deflected geometry that virtually eliminates material stretch, resulting in low deflection under load - making it an ideal solution for high-wind construction applications.

Key Features

• Designed for use with cold-formed steel framing
• Anchors the shearwall to the foundation to resist overturning
• Height: 16-5/8 in.
• Made from 118 mil (10 ga.) steel
• Galvanized (G90) for corrosion resistance
• Pre-deflected geometry virtually eliminates material stretch, resulting in low deflection under load
• Installation using self-drilling tapping screws into the studs reduces installation time and saves labor cost

Specifications

• Model Number: S/HDU11
• Height: 16-5/8 in.
• Thickness: 118 mil
• Gauge: 10 ga.
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Country of Origin: United States

Approved Applications

• High-Wind Construction

Install With

• Install with (27) #14 self-drilling screws to the stud and (1) 7/8 in. diameter anchor bolt to structure

Frequently Asked Questions

What type of framing is the Simpson S/HDU11 holdown designed for?

The S/HDU11 is specifically designed for use with cold-formed steel (CFS) framing systems, making it suitable for a wide range of light gauge steel construction projects.

What fasteners are required to install the S/HDU11?

Installation requires (27) #14 self-drilling screws to attach the holdown to the stud, along with (1) 7/8 in. diameter anchor bolt to connect it to the structure.

How does the S/HDU11 help reduce deflection under load?

The S/HDU11 features pre-deflected geometry that virtually eliminates material stretch, resulting in low deflection under load - a critical performance advantage in shearwall applications.

What corrosion protection does the S/HDU11 provide?

The S/HDU11 is finished with a Zinc Galvanized, G90 coating, which provides corrosion resistance suitable for cold-formed steel framing environments.