You might also be able to use the single pins, something like
Single Pin Connector Set (1 set) - Servos and Stuff
Or even a simple PC fan connector, like
https://allpinouts.org/pinouts/connectors/motherboards/motherboard-cpu-3-pin-fan-connector/ , although that would take a bit of filing to get rid off the ridges and make it fit, better to get a flat one if you can.