We have 4 units of the Audio Plug - 3.5mm in stock at our Sydney warehouse.
Audio Plug - 3.5mm
We can get a further 886 units from SparkFun Australia.
If you order today we can dispatch this stock between Tuesday, Mar 26 and Friday, Mar 29 2019.
SparkFun's Description of the Audio Plug - 3.5mm
This is a simple 3.5mm TRS stereo audio jack with a screw-on plastic shroud. These are great for projects that plug into headphone jacks. Stereo plugs can also be used for carrying serial comm connections!
The outer shell unscrews to reveal solder terminals on the inside of the plug. Solder on your wires and crimp the strain relief to make a finished, professional-looking cable.