SIMPSONSKU: STB2-251346SS

Simpson 1/4" x 1-3/4" Strong-Bolt 2 Wedge Anchor, 316 Stainless Steel


PACK: 100 Pk
Price:
Sale price$131.63

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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 Strong-Bolt 2 Wedge Anchor, 1/4" x 1-3/4", 316 Stainless Steel - engineered by Simpson for demanding concrete fastening applications where long-lasting corrosion resistance is essential. This wedge-type expansion anchor is code listed for both cracked and uncracked concrete and delivers high-performance reliability even under seismic and high-wind conditions.

Key Features

  • Constructed entirely of Type 316 Stainless Steel - anchor body, nut, washer, and clip - for superior corrosion resistance across a wide variety of service environments
  • Code listed for cracked and uncracked concrete applications, making it a versatile and compliant choice for structural fastening
  • Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location
  • Secondary expansion feature significantly increases the ability of the Strong-Bolt 2 to carry load if the hole expands
  • Optimal choice for high-performance fastening in seismic and high-wind conditions
  • 1/4" drill bit diameter matches anchor size for straightforward, consistent installation

Specifications

  • Model Number: STB2-251346SS
  • Coating/Material: Type 316 Stainless Steel
  • Size: 1/4" x 1-3/4"
  • Drill Bit Diameter: 1/4"
  • Thread Length: 1-1/3"
  • 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
  • Packaging: Packs of 100 and Cartons of 500

Approved Applications

  • Cracked concrete fastening applications
  • Uncracked concrete fastening applications
  • Seismic zone installations requiring code-listed anchors
  • High-wind condition structural fastening
  • Service environments requiring long-lasting corrosion resistance

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 allow for secondary expansion if a crack forms and intersects the anchor location, significantly increasing the anchor's ability to carry load even if the hole expands.
Why is Type 316 Stainless Steel used for this anchor?
Type 316 Stainless Steel provides long-lasting corrosion resistance suitable for a wide variety of service environments, including those with exposure to moisture, chemicals, or other corrosive conditions that would degrade standard carbon steel anchors over time.
What drill bit diameter is required for installation?
A 1/4" diameter drill bit is required for proper installation of the STB2-251346SS wedge anchor, matching the anchor's nominal diameter for a consistent, code-compliant fit in the concrete substrate.
Can this anchor be used in seismic or high-wind applications?
Yes. The Strong-Bolt 2 is specifically noted as an optimal choice for high-performance fastening in seismic and high-wind conditions, and it is code listed to support these demanding structural requirements.

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

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