Wedge 511®

An integral flush connection used in large-diameter, high-clearance surface casing, horizontal, repair and drilling liners, and wash-pipe.

Special applications include wire-wrapped screens for extended reach wells and tubing salvage, and slotted liners for geothermal wells.


  • Available in sizes from 2 1/16" to 18 5/8".
  • High compression rating provided by the reverse angle stab flank of the dovetail threads makes the Wedge 511® suitable for use in a variety of applications requiring high clearance, high compression & torque capability. Compression strength exceeds tension strength.



  • HP/HT & Deep Wells
  • Deep Water
  • Shallow Water
  • Horizontal & extended reach wells
  • Casing while drilling
  • Thermal (SAGD & CSS)
  • Geothermal
  • Workstrings
  • Intermediate casing and liners
  • Production casing, slotted liners & tubing