Product Description
Simpson SSTB16HDG SSTB 5/8 in. x 17-5/8 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. Backed by extensive testing and ICC-ES code listing under the 2012, 2015, 2018, and 2021 IBC and IRC, this anchor bolt delivers proven load capacity in both monolithic and two-pour concrete installations. The hot-dip galvanized finish makes it a reliable choice for exterior and treated-wood applications where enhanced corrosion resistance is required.
Key Features
- Identification on the bolt head showing embedment angle and model - allows installers to quickly verify correct bolt selection and orientation on the jobsite, reducing the risk of installation errors.
- Offset angle reduces side bursting and provides more concrete cover - protects the surrounding concrete from stress cracking and helps meet cover requirements without additional layout adjustments.
- Rolled thread for higher tensile capacity - delivers greater resistance to tension loads compared to cut threads, supporting the structural demands of holdown and shearwall connections.
- Stamped embedment line aids installation - gives installers a clear, built-in depth reference so the bolt is positioned correctly in the concrete pour every time.
- Suitable for monolithic and two-pour concrete applications - provides installation flexibility across a wide range of jobsite conditions and construction sequences.
- Hot-dip galvanized coating - offers extra corrosion resistance for exterior environments and treated-wood applications where standard zinc plating may be insufficient, extending the service life of the connection.
- ASTM F-1554, Grade 36 material - meets established steel standards, supporting consistent mechanical performance and code-compliant structural anchoring.
Why This Product
- Purpose-built for holdowns and Strong-Wall shearwalls - the SSTB anchor bolt is specifically designed and extensively tested for these demanding structural connections, giving builders and engineers confidence in verified load capacity rather than relying on generic hardware.
- ICC-ES code listed across multiple code cycles - listing under the 2012, 2015, 2018, and 2021 IBC and IRC simplifies the approval process on permitted projects and supports compliance without additional engineering justification for covered applications.
- Hot-dip galvanization for demanding environments - where exposure to moisture, outdoor conditions, or treated lumber accelerates corrosion, the HDG finish provides a level of protection that standard coatings cannot match, making this bolt well suited for coastal, exterior, and pressure-treated wood framing applications.
- Installer-friendly design details - the stamped embedment line, offset angle for improved concrete cover, and bolt head identification work together to reduce guesswork on the job, helping crews place the anchor accurately the first time and avoid costly corrections after the pour.
Specifications
- Model Number: SSTB16HDG
- Diameter: 5/8 in.
- Length: 17-5/8 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
- Anchor bolt for Simpson Strong-Tie Strong-Wall shearwalls
- Monolithic concrete installations
- Two-pour concrete installations
- Exterior applications requiring enhanced corrosion resistance
- Treated-wood applications requiring enhanced corrosion resistance
Note: Product dimensions may differ from picture. Please see item description for specifications.
Frequently Asked Questions
Are nuts and washers included with the SSTB16HDG anchor bolt?
Nuts and washers for holdown attachment are not supplied with the SSTB. Install standard nuts, couplers, and/or washers as required for your application.
Can standard nuts and couplers be used with the hot-dip galvanized SSTB16HDG?
On HDG SSTB anchors, chase the threads to use standard nuts or couplers.
What concrete pour methods is the SSTB16HDG compatible with?
The SSTB is suitable for both monolithic and two-pour concrete applications, providing installation flexibility for a variety of jobsite conditions.
Why is hot-dip galvanization used on the SSTB16HDG?
Hot-dip galvanization (HDG) offers extra corrosion resistance, making the SSTB16HDG especially well suited for exterior and treated-wood applications where standard zinc plating may be insufficient.
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