Supports aren't "technically" needed, but it is best to use them just to make sure the holes for the bolts don't get deformed.

There are two models.       Both models have what is called an Alignment tab.  You can touch the front of the flashlight to line it up before you drop it into the holder.  This makes it much easier to get the ribs of the mount lined up with the grooves towards the top of the flashlight for easier placement.  I included a photo with an arrow to point at what I'm talking about. :)




For the model with the recessed holes, you can use these items listed:

Bolt:
https://threadboards.com/download.php?file=186%20Combination%20Mount%20and%20Hex%20Cap%20screw%2012%20mm.jpeg
Install Tool:
https://threadboards.com/download.php?file=185%20T%20Handle%20Hex%20Installer.jpeg


THE NORMAL MODEL HAS NOT BEEN TESTED! I didn't want to waste the filament.  The measurements say it should work, if I measured correctly, lol.  If you print it, and it works, let me know please so I can remove this precaution. :)
For the normal model, you can use this bolt or whatever Threadboard bolts you feel you may need:
https://www.threadboards.com/download.php?file=HD12xTHR14.png