How to apply NPT threads in Fusion

Solution:

Use the Hole menu

Only to apply internal Taper Tapped NPT threads that can be referenced in the drawing workspace.
 

Model external and internal NPT threads with the coil command 

Use the Coil command to "cut" out the threads from a solid body, you can follow the NPT thread dimensions used for a coil to create an NPT thread.

Use "combine-subtract" with a modeled NPT threaded part from McMaster Carr or GRABCAD.

Follow the steps in this video to "combine-subtract" a modeled NPT threaded part from McMaster Carr or GRABCAD.