If you remove a thread from the sketch in Sketcher and create a new one, the system now remembers the previously used thread type [Thread type] and automatically selects it. You can view the thread type [Thread type] in the Edit element docking window.

When deleting a thread, the system remembers the thread type [Thread type]

Further information on creating threads can be found in the Section 7.9.3.14, “ Modify -> Thread ” in eCATALOG 3Dfindit chapter.