Have you ever wanted to know more details about different types of threads that exist for the tubbing?
The following document edited by CPC in 2007 covers the following topics about this issue :
1 EVOLUTION OF THREADS
2 TYPE OF THREADS
4 TAPER/PARALLEL THREADED JOINTS
5 DRY SEAL NPTF THREADS
Colder Products Company (2007) Pipe Thread Types and Designations