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Internet # 300591987

Model # STB2-50512P1

Store SKU # 1002236783

Strong-Bolt 1/2 in. x 5-1/2 in. Zinc-Plated Wedge Anchor

(54)Questions & Answers (10)
$358
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Product Details

Code listed for cracked and uncracked concrete, and masonry applications, the Simpson Strong-Tie Strong-Bolt 2 wedge-type expansion anchor is an optimal choice for high-performance even in seismic and high-wind conditions. Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location; this feature significantly increases the ability of Strong-Bolt 2 to carry load if the hole expands. The Strong-Bolt 2 is available in carbon steel, Type 304 and Type 316 stainless steel.
  • 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-in, and lightweight concrete-over-steel deck thickness of 2-1/2-in and 3-1/4-in
  • Tested per ACI355.2 and AC193
  • Size: 1/2 in. x 5-1/2 in.
  • Made from zinc-plated carbon steel
  • Shop all Simpson Strong-Tie here.
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

10Questions
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Q:What is the diameter of washer?
by|Dec 1, 2021
1 Answer
Answer This Question

A:  ​Hi Henley, thank you for your message. We want to make sure we address your question regarding the washer size for the STB2 1/2" x 5-1/2" Strong-Bolt®2 Wedge Anchor. The washer for the 1/2" STB2 is a carbon steel ASTM F844 compliant washer with an outside diameter of 1-3/8". If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.​​ -Stacy

by|Dec 2, 2021
    caret
    Q:What size hole do I drill for this 1/2 inch Wedge Anchor? I know it's may sound obvious to some p...
    by|Jan 4, 2021
    1 Answer
    Answer This Question

    A:  Drill bit diameter needs to match that of the wedge anchor. You will need 1/2" diameter bit for 1/2" diameter wedge anchor. A couple of points to consider: 1. Leave some backup material at the bottom of slab, i.e. do not try to drill right through as the drill bit may blow out the bottom of slab due to hammer action. Leave minimum of 2 3/4" back up material. 2. Zinc plated finish does not provide much of corrosion protection. Consider Strong-Bolt wedge anchor in 304 stainless steel finish.

    by|Aug 22, 2023
      1 found this answer helpful
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      Q:Is this anchor suitable for exterior applications?
      by|Jul 17, 2020
      1 Answer
      Answer This Question

      A:  The zinc plated carbon steel Strong-Bolt 2 has a low level of corrosion protection and would be for dry, interior conditions. For exterior, please see the Type 304 stainless steel (STB2-505124SS) which provides a high level of corrosion protection or the Type 316 stainless steel (STB2-505126SS) which is for severe conditions. Please see the Corrosion section of our website for complete information and to determine the recommended finish for your condition: https://www.strongtie.com/solutions/corrosion. Thank you!

      by|Jul 25, 2020
        caret
        Q:What is the minimum engagement for this bolt?
        by|Feb 24, 2020
        1 Answer
        Answer This Question

        A:  We are not sure we are understanding the question correctly. Please contact our Engineering Support Dept. for assistance - 800/999-5099. Thank you!

        by|Feb 28, 2020
          Showing 1-4 of 10
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          Customer Reviews

          4.5 out of 5
          (54)
          • 4.5
            out of 54 reviews
          • 87% recommend this product
          Filter by:
          Showing 1-10 of 54 reviews
          Mar 31, 2021
          The Simpson anchors are well made and reliable...haven’t had a...
          The Simpson anchors are well made and reliable...haven’t had a problem with themes
          by
          • Verified Purchase
          Mar 6, 2021
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          by
          • Verified Purchase
          Jan 10, 2021
          Not coming out once in place...
          Not coming out once in place
          by
          • Verified Purchase
          Nov 12, 2020
          Easy to use, worked great!
          Easy to use, worked great!
          by
          • Verified Purchase
          • Recommended
          Nov 11, 2020
          These anchors work very well.
          These anchors work very well.
          by
          • DIY
          • Verified Purchase
          • Recommended
          Nov 11, 2020
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          by
          • Verified Purchase
          Nov 11, 2020
          Better quality than the redhead brand because their tips are...
          Better quality than the redhead brand because their tips are smooth down about 1/4 inch. This allows you to drive them into the concrete without damaging the nut treads.
          by
          • Verified Purchase
          Sep 2, 2020
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          by
          • Verified Purchase
          Aug 29, 2020
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          by
          • Verified Purchase
          Aug 18, 2020
          by
          • Verified Purchase
          Showing 1-10 of 54 reviews
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          Fastener Length (in.)4.255.576
          Anchor Diameter (in.)1/2"1/2"5/8"5/8"
          Fastener TypeWedge AnchorsWedge AnchorsWedge AnchorsWedge Anchors
          Fastening Base MaterialBrick, ConcreteBrick, ConcreteBrick, ConcreteBrick, Concrete
          Fastener/Connector MaterialSteelSteelSteelSteel
          Interior/ExteriorInteriorInteriorInteriorInterior
          Package Quantity1111
          FeaturesNo Additional FeaturesNo Additional FeaturesNo Additional FeaturesNo Additional Features
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