Simpson SSTB34HDG SSTB 7/8 in. x 34-7/8 in. Hot-Dip Galvanized Anchor Bolt by Simpson is engineered for maximum performance as an anchor bolt for holdowns and Simpson Strong-Tie Strong-Wall shearwalls. Backed by extensive testing to determine design load capacity across many common applications, this anchor bolt is code listed by ICC-ES under the 2012, 2015, 2018, and 2021 IBC and IRC - giving contractors and engineers a reliable, code-compliant fastening solution for both monolithic and two-pour concrete applications.

Key Features

• Identification on the bolt head showing embedment angle and model - lets installers quickly confirm they have the correct anchor bolt on the job site, reducing errors during placement.
• Offset angle reduces side bursting and provides more concrete cover - protects the surrounding concrete from cracking and helps maintain structural integrity over the life of the installation.
• Rolled thread for higher tensile capacity - delivers stronger thread engagement compared to cut threads, supporting higher design loads in holdown and shearwall connections.
• Stamped embedment line aids installation - gives installers a clear visual reference for correct depth, helping ensure the bolt is set accurately every time.
• Suitable for monolithic and two-pour concrete applications - provides flexibility across a wide range of construction schedules and foundation methods.
• Hot-dip galvanized coating offers extra corrosion resistance - makes this anchor bolt well suited for exterior applications and treated-wood framing environments where moisture and chemical exposure are ongoing concerns.
• Material: ASTM F-1554, Grade 36 - meets a recognized material standard, giving engineers confidence in the bolt's mechanical properties when specifying for code-listed applications.

Why This Product

• Designed and tested specifically for holdowns and Strong-Wall shearwalls - extensive load testing has been performed across many common applications, so you are not relying on a generic anchor bolt where a purpose-built solution is needed.
• Code listed under multiple IBC and IRC code cycles - ICC-ES listing under the 2012, 2015, 2018, and 2021 IBC and IRC simplifies the plan review and inspection process, helping projects move forward without unnecessary delays.
• Hot-dip galvanization for long-term durability in demanding environments - the HDG finish addresses corrosion concerns in exterior and treated-wood applications, making this anchor bolt a practical choice where a plain or zinc-plated bolt would be inadequate.
• Installation-friendly design details built into the bolt itself - the stamped embedment line, head identification markings, and offset angle work together to reduce placement errors and support proper concrete cover without relying solely on field judgment.

Specifications

• MPN: SSTB34HDG
• Diameter: 7/8 in.
• Length: 34-7/8 in.
• Thread Length: 4-1/2 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.