★How to add internal thread to an imported model

Issue:

How to add internal thread lines to an imported model？

Solution:

1. Import an external model.
2. Click the Flag Holes command in Shape.
   
3. Select the Face and Holes.
4. Tick the Flagged as thread hole command.
   
5. The effect is as follows.
   
6. In 2D Sheet, click the Hole Call Out command in Dimension.
   
7. Display the information of thread holes as required.