Wedge 523™

An integral semi-flush connection designed for production casing, intermediate casing, tie-backs, and drilling and production liners. Special applications include highly deviated and horizontal wells, drilling with casing, and where casing is rotated and pushed into place.


  • Available in sizes from 7" to 16".
  • High compression rating provided by the reverse angle stab flank of the threads makes the Wedge 523™ suitable for the most severe compression applications. Compression strength exceeds tension strength.
  • Wedge 523™ is interchangeable with Wedge 513™.



  • Deepwater
  • HP/HT & deep wells
  • Shallow Water
  • Horizontal & extended reach wells
  • Casing while drilling
  • Intermediate casing & liners
  • Production casing