That for sure is what TackTick & the B&G H5000 uses. Having previously owned Nexus gear, I don't think the Phoenix connectors shown will work.This would be a good interchange part to know. It's got to be a fairly standard industrial part. I have been looking as well with no luck thus far.
I wonder if a Phoenix Connector would fit. That's the closest part that comes to mind, I guess a trip to the electronics store is in order.