Window screen hole and grommet

I made this window screen grommet to reinforce a hole passing an amateur radio antenna cable into the house.  The hole diameter is 13mm (just over ½"), and a rotating flap exposes or covers the through-hole.  This is a perfect size for a cable with an SMA male or female connector.

Everything snaps together firmly with plenty of room to sandwich the screen material in the middle.  It will not come apart without destroying it.  I recommend you seat the cover into its hole using light hammer taps, and make sure it seats fully - it will be flush with the other side when fully seated.

I printed mine in PETG with no supports.  Cheers and happy making!