Product Features
Product Description
Simpson STB2-50812S6F20 Strong-Bolt 2 - 1/2 in. x 8-1/2 in. Type 316 Stainless-Steel Wedge Anchor is a high-performance wedge-type expansion anchor from Simpson Strong-Tie, engineered for demanding structural applications including seismic and high-wind conditions. Made entirely from Type 316 stainless steel, this anchor delivers long-lasting corrosion resistance across a wide variety of service environments. Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location, significantly increasing load-carrying capacity even when the hole expands.
Key Features
- Code listed for cracked and uncracked concrete 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
- Standard (ANSI) fractional sizes: fits standard fixtures and installs with common drill bit and tool sizes
- Tested per ACI355.2 and AC193
- Made from Type 316 stainless steel for long-lasting corrosion resistance
- Dual undercutting embossments on each clip segment enable secondary expansion if a crack intersects the anchor location
- Fully assembled for ready-to-install convenience
Specifications
- MPN: STB2-50812S6F20
- Brand: Simpson Strong-Tie
- Anchor Type: Wedge-Type Expansion Anchor
- Material: Type 316 Stainless Steel
- Finish: Type 316 Stainless Steel
- Diameter: 1/2 in.
- Length: 8-1/2 in.
- Thread Length: 6 in.
- Component Material - Anchor Body: Type 316 Stainless Steel
- Component Material - Nut: Type 316 Stainless Steel
- Component Material - Washer: Type 316 Stainless Steel
- Component Material - Clip: Type 316 Stainless Steel
- Assembly: Fully Assembled
- Install With: Installs with 1/2 in. drill bit and 3/4 in. wrench size
- Testing Standards: ACI355.2 and AC193
- Packaging: Packs of 20 and Cartons of 40
- Country of Origin: China
Approved Applications
- Cracked concrete structural connections
- Uncracked concrete structural connections
- Seismic design categories A through F
- High-wind condition installations
- Horizontal anchor installations
- Vertical anchor installations
- Overhead anchor installations
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 applications. Its dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location, significantly increasing its ability to carry load if the hole expands.
- 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, making it an optimal choice for high-performance applications in seismic and high-wind conditions.
- What tools are needed to install the STB2-50812S6F20?
- This anchor installs with a 1/2 in. drill bit and requires a 3/4 in. wrench size for tightening. Its standard (ANSI) fractional sizing ensures compatibility with common drill bits and tool sizes.
- What standards has this anchor been tested to?
- The Strong-Bolt 2 has been tested per ACI355.2 and AC193, providing verified performance data for use in code-compliant structural applications.
Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.
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