STRONG-BOLT® Wedge Anchor for Cracked and Uncracked Concrete


The Strong-Bolt® is a wedge anchor specifically designed for optimum performance in both cracked and uncracked concrete; a requirement that the 2009 IBC places on post-installed anchors. Rigorously tested according to the latest industry-wide criteria, the Strong-Bolt anchor is proven to offer increased reliability in the most adverse conditions, including performance in cracked concrete under static and seismic loading. The proprietary tri-segmented clip has dual undercutting embossments on each segment which enable secondary or “follow-up” expansion if a crack forms and intersects the anchor location. This significantly increases the ability of the Strong-Bolt wedge anchor to carry load if the hole opened slightly due to a crack. The Strong-Bolt anchor sets like a standard wedge anchor and is available in Imperial fractional sizes.



  • Tri-segmented clip: Each segment is able to adjust independently increasing follow-up expansion should the hole increase in size as a result of a crack.
  • Dual embossments on each clip segment: Allows the clip to undercut into the concrete increasing follow-up expansion should a crack occur.
  • 316 stainless steel clip: In addition to superior corrosion resistance, a stainless steel clip offers better “memory”. This memory contributes to the anchor’s performance should the hole size increase due to a crack.
  • Imperial fractional sized anchor: Fits most fixtures and installs with common drill bits sizes and tools. No need to buy additional tools to install a metric anchor and no special couplers needed.
  • Installs like a standard wedge anchor: No complicated installation procedure. No need for special bits or installation tools.
  • The head is stamped with the Simpson Strong-Tie® “≠” sign and size ID for easy post installation identification


Carbon-steel stud with 316 stainless steel clip.


Zinc plated