The Simpson Strong-Tie S/HDB 11 in. Light Steel Bolted Holdown (Model S/HD8B) is engineered to deliver reliable load performance for high-load shearwalls, braced-wall panels, and lateral applications. Ideal for bolt-on installations where cold-formed steel stud manufacturers can prepunch the bolt holes, this holdown features a unique seat design that greatly minimizes deflection under load. Designed for installation with bolts into the studs or column, the S/HD8B is a dependable solution for demanding light-gauge steel framing projects.

Key Features

• Can be installed directly on the bottom track or raised above it and is suitable for back-to-back applications where eccentricity is a concern
• Features a unique seat design that greatly minimizes deflection under load
• The S/HDB series is designed for installation with bolts; refer to the S/HDS series for attachment to post/column with screws
• Holdown dimensions: 11 in. high x 2-5/16 in. wide
• Made from 118 mil (10 ga.) steel
• Simpson Strong-Tie gray paint finish

Specifications

• Model Number: S/HD8B
• Series: S/HDB
• Height: 11 in.
• Width: 2-5/16 in.
• Gauge: 10 ga. (118 mil)
• Coating/Finish: Simpson Strong-Tie Gray Paint
• Installation Hardware: Install with (2) 3/4 in. diameter bolts to stud and (1) 7/8 in. diameter anchor bolt to structure
• Country of Origin: United States

Approved Applications

• High-load shearwall connections
• Braced-wall panel assemblies
• Lateral load applications
• Bolt-on installations where cold-formed steel stud manufacturers can prepunch the bolt holes
• Back-to-back stud applications where eccentricity is a concern

Frequently Asked Questions

What type of fasteners are required to install the S/HD8B holdown?

The S/HD8B is designed for installation with bolts. Specifically, it installs with (2) 3/4 in. diameter bolts to the stud and (1) 7/8 in. diameter anchor bolt to the structure.

Can the S/HD8B be used in back-to-back stud applications?

Yes. The S/HD8B can be installed directly on the bottom track or raised above it and is suitable for back-to-back applications where eccentricity is a concern.

What is the difference between the S/HDB and S/HDS series?

The S/HDB series, which includes the S/HD8B, is designed for installation with bolts into the studs or column. The S/HDS series is intended for attachment to a post or column using screws.

What material and finish is used on the S/HD8B?

The S/HD8B is made from 118 mil (10 ga.) steel and features a Simpson Strong-Tie gray paint finish.