| Design | Advantage | |
|---|---|---|
| API/BTC interchangeable | ➡ | ?Cost savings as compared with premium joints ?Utilize exiting BTC accessories |
| Pin-to-pin nose abutment | ➡ | ?High over-torque resistance ?Enhanced leak resistance ?Enhanced fatigue strength |
| Low hoop stress with optimized thread interference | ➡ | ?Helps prevent split coupling |
| Proper make up torque and position control on mill and field ends | ➡ | ?Liquid & gas sealability testing |
| Modified “draft” API 5TR5SF testing | ➡ | ?Includes fatigue testing |
| Standard usage of metal-free dope | ➡ | ?Environmentally friendly |
