SIMPSONSKU: STB2-50512S6F25

Simpson 1/2" x 5-1/2" Strong-Bolt 2 Wedge Anchor, 316 Stainless Steel


PACK: 25 Pk
Price:
Sale price$257.41

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Product Features

  • 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
  • Qualified for minimum concrete thickness of 3 1/4", and lightweight concrete-over-steel deck
  • Standard (ANSI) fractional sizes: fits standard fixtures and installs with common drill bit and tool sizes
  • Tested per ACI355.2 and AC193

Product Description

Simpson STB2-50512S6F25 Strong-Bolt 2 - 1/2 in. x 5-1/2 in. Type 316 Stainless-Steel Wedge Anchor by Simpson Strong-Tie is a high-performance wedge-type expansion anchor engineered for demanding structural applications in cracked and uncracked concrete. Built from Type 316 stainless steel for long-lasting corrosion resistance across a wide variety of service environments, the Strong-Bolt 2 delivers reliable holding power in seismic and high-wind conditions, making it a trusted choice for critical concrete anchoring projects.

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 should a crack form and intersect the anchor location, significantly increasing the ability of Strong-Bolt 2 to carry load if the hole expands

Specifications

  • MPN: STB2-50512S6F25
  • Brand: Simpson Strong-Tie
  • Anchor Type: Wedge-Type Expansion Anchor
  • Diameter: 1/2 in.
  • Length: 5-1/2 in.
  • Thread Length: 3-13/16 in.
  • Material - Anchor Body: Type 316 Stainless Steel
  • Material - Nut: Type 316 Stainless Steel
  • Material - Washer: Type 316 Stainless Steel
  • Material - Clip: Type 316 Stainless Steel
  • Finish: Type 316 Stainless Steel
  • Installation - Drill Bit Size: 1/2 in.
  • Installation - Wrench Size: 3/4 in.
  • Assembly: Fully Assembled
  • Packaging: Packs of 25 and Cartons of 50
  • Country of Origin: China

Approved Applications

  • Cracked concrete applications
  • Uncracked concrete applications
  • Horizontal installations
  • Vertical installations
  • Overhead installations
  • Seismic design categories A through F
  • High-wind structural connections
  • Static and seismic loading conditions

Frequently Asked Questions

What type of concrete can the Strong-Bolt 2 be used in?
The Strong-Bolt 2 is code listed for both cracked and uncracked concrete applications, providing versatile performance across a broad range of structural conditions.
Why is Type 316 stainless steel used for this anchor?
Type 316 stainless steel offers long-lasting corrosion resistance for a wide variety of service environments, making this anchor well-suited for applications where exposure to moisture, chemicals, or other corrosive elements is a concern.
What tools are needed to install the Strong-Bolt 2 1/2 in. x 5-1/2 in. anchor?
Installation requires a 1/2 in. drill bit to bore the hole and a 3/4 in. wrench to tighten the nut. The chamfered top is designed to prevent mushrooming during installation, helping ensure a clean and secure set.
Is the Strong-Bolt 2 approved for seismic applications?
Yes. The Strong-Bolt 2 is qualified for static and seismic loading conditions covering seismic design categories A through F. Its dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location, significantly increasing the ability of Strong-Bolt 2 to carry load if the hole expands.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.

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