Product Features
Product Description
Simpson STB2-62812F20 Strong-Bolt 2 - 5/8 in. x 8-1/2 in. Wedge Anchor, Zinc Plated is a high-performance wedge-type expansion anchor from Simpson Strong-Tie, engineered for demanding structural connections in cracked and uncracked concrete and masonry. Featuring dual undercutting embossments on each clip segment, the Strong-Bolt 2 delivers secondary expansion if a crack forms and intersects the anchor location - significantly increasing load-carrying capacity when the hole expands - making it an optimal choice for seismic and high-wind conditions.
Key Features
- Code listed for cracked and uncracked concrete, and masonry applications
- Chamfered top designed to prevent mushrooming during installation
- Qualified for static and seismic loading conditions (seismic design categories A through F)
- Suitable for horizontal, vertical and overhead applications
- Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location
- Tested per ACI355.2 and AC193
- Made from zinc-plated carbon steel
- Fully assembled and ready to install
Specifications
- Manufacturer Part Number (MPN): STB2-62812F20
- Brand: Simpson Strong-Tie
- Diameter: 5/8 in.
- Length: 8-1/2 in.
- Thread Length: 4-15/16 in.
- Material: Carbon Steel
- Coating / Finish: Zinc Plated
- Installation: Installs with 5/8 in. drill bit and 15/16 in. wrench size
- Packaging: Packs of 20 and Cartons of 80
- Country of Origin: China
Approved Applications
- Cracked concrete
- Uncracked concrete
- Masonry applications
- Horizontal installations
- Vertical installations
- Overhead installations
- Seismic design categories A through F
- High-wind structural connections
Frequently Asked Questions
- Is the Strong-Bolt 2 suitable for use in cracked concrete?
- Yes. The Strong-Bolt 2 is code listed for both cracked and uncracked concrete, as well as masonry applications. Its dual undercutting embossments on each clip segment enable secondary expansion if a crack forms and intersects the anchor location, significantly increasing load-carrying capacity in that condition.
- What seismic design categories is this anchor qualified for?
- The Strong-Bolt 2 is qualified for static and seismic loading conditions covering seismic design categories A through F - the full range recognized under applicable building codes. It has been tested per ACI355.2 and AC193.
- What tools are needed to install the STB2-62812F20?
- Installation requires a 5/8 in. drill bit to bore the hole and a 15/16 in. wrench to tighten the anchor. The chamfered top is designed to prevent mushrooming during the driving process, helping ensure a clean and reliable installation.
- Can this anchor be used in overhead or horizontal orientations?
- Yes. The Strong-Bolt 2 is suitable for horizontal, vertical, and overhead applications, providing installation flexibility across a wide variety of structural and construction scenarios.
Note: Product dimensions and/or thread length may differ from picture. Please refer to the specifications listed above for accurate measurements.
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