Finished API Couplings for Non upset and External upset Tubing upto 4 1/2" OD in accordance with API Specifications 5CT and 5B, in all Grades can be supplied with either Zinc or Manganeses phosphating.

Finished API Couplings for Casing upto 20" OD covering Short and Long Round Thread and Buttress Thread in accordance with API Specifications 5CT and 5B, in all Grades can be supplied with either Zinc or Manganeses phosphating.

All the Couplings are 100% inspected for critical thread parameters and are magnetic particle inspected and verified for their mechanical properties. The Test and Inspection results are all documented.