Product Features
Product Description
The Simpson Strong-Tie Strong-Bolt 2 Wedge Anchor (Model STB2-37214S6F50) is a 3/8 in. x 2-1/4 in. wedge-type expansion anchor manufactured from Type 316 stainless steel, engineered for high-performance anchoring in both cracked and uncracked concrete. Designed by Simpson Strong-Tie, this anchor delivers exceptional load capacity under static, seismic, and high-wind conditions, making it a trusted solution for demanding structural and construction applications. Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location, significantly increasing the ability of the Strong-Bolt 2 to carry load if the hole expands. The Type 316 stainless-steel construction provides long-lasting corrosion resistance across a wide variety of service environments.
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 and ready for installation
Specifications
- Model Number: STB2-37214S6F50
- Brand: Simpson Strong-Tie
- Anchor Type: Wedge-Type Expansion Anchor
- Diameter: 3/8 in.
- Length: 2-1/4 in.
- Thread Length: 1 in.
- Material: Type 316 Stainless Steel
- Finish: Type 316 Stainless Steel
- Anchor Body Material: Type 316 Stainless Steel
- Nut Material: Type 316 Stainless Steel
- Washer Material: Type 316 Stainless Steel
- Clip Material: Type 316 Stainless Steel
- Required Drill Bit Size: 3/8 in.
- Required Wrench Size: 9/16 in.
- Test Standards: ACI355.2 and AC193
- Packaging: Packs of 50 and Cartons of 200
- Country of Origin: China
Approved Applications
- Cracked concrete anchoring applications
- Uncracked concrete anchoring applications
- Seismic design categories A through F
- High-wind structural connections
- Horizontal installations
- Vertical installations
- Overhead installations
- Static and seismic loading conditions
Frequently Asked Questions
- What type of concrete can the Simpson Strong-Bolt 2 be used in?
- The Strong-Bolt 2 is code listed for both cracked and uncracked concrete applications, making it suitable for a wide range of structural anchoring scenarios, including environments where seismic activity or high winds may cause cracking at the anchor location.
- What tools are needed to install the STB2-37214S6F50 wedge anchor?
- Installation requires a 3/8 in. drill bit to bore the hole and a 9/16 in. wrench to tighten the anchor. The standard ANSI fractional sizing ensures compatibility with common drill bits and tool sizes.
- Why is Type 316 stainless steel used for this anchor?
- Type 316 stainless steel is selected for its superior corrosion resistance, providing long-lasting durability across a wide variety of service environments, including applications where exposure to moisture or corrosive conditions is a concern. All components - including the anchor body, nut, washer, and clip - are made from Type 316 stainless steel.
- What makes the Strong-Bolt 2 perform well in seismic conditions?
- The Strong-Bolt 2 features dual undercutting embossments on each clip segment that enable secondary expansion if a crack forms and intersects the anchor location. This design significantly increases the anchor's ability to carry load if the hole expands, and it is qualified for seismic design categories A through F under both static and seismic loading conditions as tested per ACI355.2 and AC193.
Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.
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