Product Description
Simpson SSTB28HDG Hot-Dip Galvanized Anchor Bolt, 7/8 in. x 29-7/8 in. is a Simpson engineered anchor bolt built for maximum performance in holdown and Strong-Wall shearwall applications. Backed by extensive load-capacity testing and code listed by ICC-ES under the 2012, 2015, 2018, and 2021 IBC and IRC, this bolt is a reliable foundation connection for both monolithic and two-pour concrete construction. The hot-dip galvanized finish makes it well suited for exterior installations and treated-wood applications where corrosion resistance is a priority.
Key Features
- Identification on the bolt head showing embedment angle and model - lets installers quickly confirm the correct bolt is in place and oriented properly, reducing costly field errors.
- Offset angle design - reduces side bursting forces on concrete and increases concrete cover, improving structural integrity at the connection point.
- Rolled thread construction - delivers higher tensile capacity compared to cut threads, giving the bolt greater resistance to the pull-out forces common in holdown applications.
- Stamped embedment line - provides a clear visual reference during placement so the bolt is set to the correct depth the first time, speeding up installation.
- Compatible with monolithic and two-pour concrete applications - offers flexibility across different foundation and slab construction methods without requiring a separate product.
- Hot-dip galvanized coating - provides extra corrosion resistance for exterior and treated-wood applications, extending the service life of the connection in demanding environments.
- ASTM F-1554, Grade 36 material - meets established structural steel standards, supporting confidence in design load calculations and code compliance documentation.
- ICC-ES code listing under 2012, 2015, 2018, and 2021 IBC and IRC - simplifies plan review and inspection approval by providing inspectors and engineers a recognized compliance reference.
Why This Product
- Engineered specifically for holdown and shearwall connections - unlike general-purpose anchor bolts, the SSTB28HDG was designed and extensively tested for the demanding load requirements of holdowns and Simpson Strong-Wall shearwall systems, giving engineers and contractors a purpose-built solution.
- HDG finish adds a meaningful layer of protection - for projects involving exterior concrete, pressure-treated lumber, or high-moisture environments, the hot-dip galvanized version is the appropriate choice when standard zinc plating would be insufficient.
- Installation-friendly design features reduce guesswork on the job site - the stamped embedment line, bolt-head identification, and offset angle work together to make correct placement faster and easier, lowering the risk of installation errors that require costly rework.
- Multi-code compliance supports a wide range of projects - with ICC-ES listings spanning four IBC and IRC code cycles, this anchor bolt can be specified with confidence on both new construction and renovation projects subject to varying local code adoptions.
Specifications
- MPN: SSTB28HDG
- Diameter: 7/8 in.
- Length: 29-7/8 in.
- Material: ASTM F-1554, Grade 36
- Coating: Hot-Dip Galvanized
- Finish: Hot-Dip Galvanized
- Country of Origin: United States
Approved Applications
- Anchor bolt for holdowns
- Anchor bolt for Simpson Strong-Tie Strong-Wall shearwalls
- Monolithic concrete applications
- Two-pour concrete applications
- Exterior applications requiring corrosion resistance
- Treated-wood applications requiring corrosion resistance
Note: Product dimensions may differ from picture. Please see item description for specifications.
Frequently Asked Questions
What is the SSTB28HDG anchor bolt designed for?
The SSTB anchor bolt is designed for maximum performance as an anchor bolt for holdowns and Simpson Strong-Tie Strong-Wall shearwalls. Extensive testing has been done to determine the design load capacity of the SSTB when installed in many common applications.
Are nuts and washers included with the SSTB28HDG?
Nuts and washers for holdown attachment are not supplied with the SSTB. On HDG SSTB anchors, chase the threads to use standard nuts or couplers.
Why choose the hot-dip galvanized (HDG) version of the SSTB anchor bolt?
Hot-dip galvanization (HDG) offers extra corrosion resistance for exterior and treated-wood applications, making the SSTB28HDG the appropriate choice when additional protection against corrosion is required.
Is the SSTB28HDG code compliant?
Yes. The Simpson Strong-Tie SSTB anchor bolts are code listed by ICC-ES under the 2012, 2015, 2018, and 2021 IBC and IRC.
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