Product Description
The Simpson SSTB24HDG 5/8 in. x 25-5/8 in. Hot-Dip Galvanized Anchor Bolt is engineered by Simpson for maximum performance as an anchor bolt for holdowns and Simpson Strong-Tie Strong-Wall shearwalls in residential and commercial construction. Extensive testing has been conducted to determine the design load capacity of the SSTB when installed in many common applications, and the anchor bolt is code listed by ICC-ES under the 2012, 2015, 2018, and 2021 IBC and IRC - giving builders and engineers confidence in structural compliance across a wide range of projects. The hot-dip galvanized finish delivers extra corrosion resistance, making this anchor bolt well suited for exterior and treated-wood applications where long-term durability is essential.
Key Features
- Bolt head identification showing embedment angle and model - lets installers quickly confirm correct placement and orientation in the field, reducing costly errors.
- Offset angle design - reduces side bursting forces and provides more concrete cover, improving structural integrity in the surrounding concrete.
- Rolled thread construction - delivers higher tensile capacity compared to cut threads, supporting demanding holdown and shearwall load requirements.
- Stamped embedment line on the bolt - serves as a built-in installation guide so crews can set the anchor to the correct depth without additional measuring steps.
- Compatible with both monolithic and two-pour concrete applications - offers flexibility to suit different foundation and slab construction methods on the same jobsite.
- ASTM F-1554, Grade 36 material - meets recognized material standards, supporting structural design and code compliance documentation.
- Hot-dip galvanized coating - provides extra corrosion resistance for exterior and treated-wood applications, extending service life in moisture-prone or chemically active environments.
Why This Product
- Purpose-built for holdowns and shearwall systems - the SSTB anchor bolt is specifically designed and extensively tested for use with holdowns and Simpson Strong-Tie Strong-Wall shearwalls, ensuring load capacities are known and verifiable rather than estimated.
- Code listed for current and recent building codes - ICC-ES listing under the 2012, 2015, 2018, and 2021 IBC and IRC simplifies the approval process on permitted projects and supports inspector confidence without additional engineering justification.
- Hot-dip galvanized finish for demanding environments - unlike standard zinc plating, the HDG coating is suited for exterior installations and contact with treated lumber, where corrosion is an ongoing concern and long-term anchor integrity is critical.
- Installer-friendly design details - the combination of a stamped embedment line, labeled bolt head, and offset angle works together to reduce guesswork during concrete placement, helping crews get the anchor right the first time.
Specifications
- Manufacturer Part Number (MPN): SSTB24HDG
- Diameter: 5/8 in.
- Length: 25-5/8 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 in residential and commercial construction
- Anchor bolt for Simpson Strong-Tie Strong-Wall shearwalls
- Monolithic concrete pours
- Two-pour concrete applications
- Exterior applications requiring enhanced corrosion resistance
- Treated-wood applications requiring enhanced corrosion resistance
What's Included & Installation Notes
The SSTB24HDG anchor bolt is supplied as a single bolt unit. 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.
Frequently Asked Questions
Is the SSTB24HDG suitable for both monolithic and two-pour concrete applications?
Yes, the SSTB anchor bolt is suitable for both monolithic and two-pour concrete applications, offering flexibility for different construction methods and project requirements.
Why is the hot-dip galvanized coating recommended for this anchor bolt?
The hot-dip galvanized (HDG) finish provides extra corrosion resistance, making the SSTB24HDG well suited for exterior and treated-wood applications where long-term durability in harsh or moisture-prone environments is essential.
Do nuts and washers come included with the SSTB24HDG?
No, nuts and washers for holdown attachment are not supplied with the SSTB. Additionally, on HDG SSTB anchors, you will need to chase the threads in order to use standard nuts or couplers.
What building codes is the SSTB24HDG listed under?
The SSTB anchor bolt is code listed by ICC-ES under the 2012, 2015, 2018, and 2021 IBC and IRC, providing confidence in structural compliance for a wide range of residential and commercial construction projects.
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