An integral connection for production casing, intermediate casing and tie-backs. Special applications include heavy-wall casing and use in shifting salt intervals.


  • Available in sizes from 5 1/2" to 16".
  • High performance achieved by machining pin and box on formed ends.
  • Suitable alternative for heavy wall applications with reduced clerances.



  • HP/HT & Deep Wells
  • Intermediate casing, liner & tie-backs
  • Production casing & liners

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