Wedge 551™

A one-end upset connection used for workstrings and production tubing.

Special applications include highly deviated and extended reach wells, milling, jarring, fishing, drilling cement and diamond-coring operations.


  • Available in sizes from 2 3/8" to 4 1/2".
  • Exceptional torque strength developed through the simultaneous engagement of opposing flanks of the double hooked dovetail thread.
  • Trouble-free make-up is developed with the rugged, coarse pitch thread and steep taper for deep stabbing.
  • 100% pipe body ratings for tension and bending developed using non upset pin end and upset box end pipe. Reverse angle stab flank provides 100% compression rating.
  • 100% pipe body internal yield and collapse strength created with the lubricant seal of the dovetail threads.
  • Roller-stenciled make-up confirmation band.
  • Wedge 551™ is interchangeable with Wedge 561™, Wedge 531™ and Wedge 501™.



  • Production tubing and workstrings
  • Horizontal and extended-reach wells
  • Drilling with tubing

Our Site uses cookies. By using our Site (through any device) you agree that our rules on use of cookies as contemplated in our Terms & Conditions shall apply.
We may revise and update the applicable rules at anytime, therefore, we recommend visitors and users to periodically review the rules of use of cookies to ensure that visitors and users are aware of any changes.