Views: 3 Author: Site Editor Publish Time: 2022-06-07 Origin: Site
The sucker rod coupling have the same box thread size in each end are used for connecting sucker rod and/or pony rod, and/or sinker bars with sucker rod threads.
Specification: 5/8”, 3/4”, 7/8”, 1”, 1-1/8
Class: T, SM (Spraying Metal)
Standard: API 11B