Cap for hoverboard style charging socket

This is a cap for a plug often used for 42V hoverboard chargers. I do not know exactly what it is called, but it is 3 pin with screw lock and an inner diameter of approx 9mm. I used it for my electric bicycle build since I already had a charger. Spare sockets with a stub wire should be available on eBay, as well as spare chargers.

The tall version of the cap has room for a lanyard.

Make sure you use a fine layer height for the section with the threads. I would recommend 0.1mm.