The Simpson Strong-Tie IXP anchor is a torque-controlled adhesive anchor that, when used with Simpson Strong-Tie® SET-XP™ epoxy, provides optimum performance in both cracked and uncracked concrete under a variety of adverse service conditions. The IXP anchor was rigorously tested according to ICC-ES AC308 and 2006 IBC requirements. The unique conical shape of the helix configuration enables the IXP anchor to mimic the follow-up expansion behavior of a torque-controlled expansion anchor when tension-zone cracks in the base material intersect the anchor location. In addition, the “tri-lobular” shape of the helix configuration functions as an anti-rotation feature that prevents the anchor from unscrewing during torquing, vibratory and seismic loading, and the normal open and closed cycling of tension zone cracks over the anchor’s service life.
FEATURES
- Conical helix configuration provides follow-up expansion forces when cracks intersect the anchor.
- Tri-lobular configuration prevents the anchor from unscrewing during torquing, vibratory and seismic loading, and open and closed cycling of cracks.
- Installs like threaded rod: no special drill bits required.
- Head stamped with ≠ sign for easy identification after installation.
DESIGN EXAMPLE
For design example, click here.
INSTALLATION
IMPORTANT For installation instructions, click here.
CODE REPORTS
- ICC-ES pending
MATERIAL
ASTM A193, Grade B7
FINISH
Zinc Plated
IXP Product Data

Patent Pending
LINKS:
TEST CRITERIA
IXP anchors installed with SET-XP™ adhesive have been tested in accordance with ICC-ES’s Acceptance Criteria for Post–Installed Adhesive Anchors in Concrete (AC308) for the following:
- Seismic Loading in Cracked Concrete
- Static and Cyclic Cracks
- Horizontal and Overhead Installations
- Long Term Creep at Elevated Temperatures
- Static Loading at Elevated Temperatures
- Damp Holes
- Freeze–Thaw Conditions
- Critical and Minimum Edge Distance and Spacing
IXP Anchor with SET-XPT Epoxy Installation and Additional Data1
- The information presented in this table is to be used in conjunction with with the design criteria of ACI 318 Appendix D.

