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 
- Tested per ACI355.2 and AC193 
- Size: 1/2-in x 3-3/4-in 
- Made from zinc-plated carbon steel