The Simpson SSTB28L is a 7/8 in. x 32 7/8 in. anchor bolt engineered by Simpson for maximum performance in holdown and Strong-Wall shearwall applications. Extensively tested across many common concrete installations, the SSTB series delivers reliable, code-listed load capacity under the 2012, 2015, 2018, and 2021 IBC and IRC - giving builders and engineers a trusted foundation for wood-frame structural anchoring. Suitable for both monolithic and two-pour concrete applications, the SSTB28L is a versatile structural anchor bolt built to perform where it matters most.

Key Features

• Bolt head identification with embedment angle and model - lets installers verify the correct bolt and orientation at a glance, reducing placement errors in the field.
• Offset angle design - reduces side bursting forces on the concrete and provides greater concrete cover, protecting structural integrity at the anchor zone.
• Rolled thread construction - delivers higher tensile capacity compared to cut threads, supporting the demanding load requirements of holdown and shearwall connections.
• Stamped embedment line - gives installers a clear, built-in reference mark for accurate embedment depth without measuring from scratch, speeding up concrete pours.
• Compatible with both monolithic and two-pour concrete applications - makes this anchor bolt adaptable to a wider range of job site conditions and construction sequences.

Why This Product

• Code-listed confidence - The SSTB28L is listed by ICC-ES under multiple editions of the IBC and IRC, so it meets plan-check and inspection requirements without added documentation headaches.
• Engineered for holdowns and shearwalls - Extensive testing specific to holdown and Strong-Wall shearwall applications means design load values are well-established, giving engineers and contractors reliable numbers to work from.
• Built-in installation aids reduce field error - Between the stamped embedment line and the labeled bolt head, the SSTB28L is designed to go in correctly the first time, cutting rework during foundation work.
• Higher tensile performance through rolled threads - For structural connections where uplift loads are a primary concern, the rolled thread construction provides an added margin of tensile strength that cut-thread bolts cannot match.

Specifications

• Model Number: SSTB28L
• Diameter: 7/8 in.
• Length: 32-7/8 in.
• Thread Length: 6-1/2 in.
• Material: ASTM F-1554, Grade 36
• Finish: Uncoated Steel
• Coating: None
• Country of Origin: United States

Approved Applications

• Anchor bolt for holdowns in wood-frame structural assemblies
• Anchor bolt for