Primus Stove Cap

Primus Outdoor Stove push Cap for the 7/16" x 28 UNEF thread.
I could not figure out how to draw the thread in Freecad, so its a push cap now, but maybe you can remix and upload it with a modeled thread.

Edit:
Update a version with a thread, since FreeCAD 0.20 we are able to hardmodel threads :-)