The Simpson Strong-Tie SSTB20 is a 5/8 in. x 21-5/8 in. anchor bolt engineered 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. Code listed by ICC-ES under the 2012, 2015, 2018, and 2021 IBC and IRC, the SSTB20 delivers trusted, tested performance for structural anchoring applications in both monolithic and two-pour concrete installations. Manufactured in the United States from ASTM F-1554, Grade 36 steel, this anchor bolt features a rolled thread for higher tensile capacity and a precision offset angle that reduces side bursting while providing greater concrete cover.

Key Features

• Bolt Head Identification: Identification on the bolt head showing embedment angle and model for easy, error-free installation verification
• Offset Angle Design: Offset angle reduces side bursting and provides more concrete cover for improved structural integrity
• Rolled Thread: Rolled thread for higher tensile capacity compared to cut-thread alternatives
• Stamped Embedment Line: Stamped embedment line aids installation by clearly marking the correct depth
• Versatile Concrete Compatibility: Suitable for both monolithic and two-pour concrete applications
• Code Listed: ICC-ES code listed under the 2012, 2015, 2018, and 2021 IBC and IRC
• Domestic Manufacture: Made in the United States from ASTM F-1554, Grade 36 steel

Specifications

• Model Number (MPN): SSTB20
• Diameter: 5/8 in.
• Length: 21-5/8 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 construction
• Anchor bolt for Simpson Strong-Tie Strong-Wall shearwalls
• Monolithic concrete pour applications
• Two-pour concrete applications
• Applications requiring ICC-ES code-listed anchor bolt solutions under the 2012, 2015, 2018, and 2021 IBC and IRC

What's Included

• 1 x Simpson Strong-Tie SSTB20 Anchor Bolt (5/8 in. x 21-5/8 in.)

Note: Nuts and washers for holdown attachment are not supplied with the SSTB; install standard nuts, couplers and/or washers as required.

Note: Product dimensions may differ from picture. Please see item description for specifications.

Frequently Asked Questions

What applications is the SSTB20 anchor bolt designed for?

The SSTB20 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 when installed in many common applications, and it is ICC-ES code listed under the 2012, 2015, 2018, and 2021 IBC and IRC.

Is the SSTB20 compatible with both monolithic and two-pour concrete installations?

Yes, the SSTB20 is suitable for both monolithic and two-pour concrete applications, making it versatile for a range of concrete foundation and structural anchoring scenarios.

What material is the SSTB20 made from, and does it have a protective coating?

The SSTB20 is made from ASTM F-1554, Grade 36 steel and has no coating or finish applied - it is uncoated steel. The bolt features a rolled thread for higher tensile capacity compared to cut-thread alternatives.

Are nuts and washers included with the SSTB20?

No, nuts and washers for holdown attachment are not supplied with the SSTB20. Standard nuts, couplers, and/or washers should be installed as required for your specific application.