Install the Add-In:

• Download and install the add-in, files will be placed in the %AppData/ApplicationsPlugins% bundle folder. 

• After installation, start Autodesk® Fusion® to activate the add-in. The add-in will automatically run each time Fusion starts.

Access New Thread Profiles:

• To use the new ISO Metric thread profiles with additional clearance options, go to the Create menu in Fusion and select Thread.
• The new thread profiles will appear in the list, with clearance options ranging from 0.1mm to 1.0mm in 0.1mm increments, specifically optimized for 3D printing.

Install:
Run the downloaded installer to install the app/plugin.

Uninstall:
You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.
Unchecking "Run on Startup" causes the add-in not to be loaded in future Fusion sessions.
To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button.
You can also uninstall it from 'Control Panel/Programs and Features' (Windows 10/11), just as you would any other application from your system.