The following advice is based on a best guess. I don't know the exact part number KNC uses on their boards. Modifying electrical equipment can be dangerous, may result in operational problems or hazards and may void your warrantee. Having said that:
You need one of these:
http://www.molex.com/molex/products/datasheet.jsp?part=active/0026013116_PCB_HEADERS.xmlA search for Molex 26-01-3116 at Mouser should get you what you want.
$1.89 in quantities of 1 with gold plated terminals at Mouser.com. It would have been so thoughtful for KNC to put 2 of these on their Neptune and Titan boards. In quantities of 2000 they are $0.89 each, with gold plated terminals. These are rated to 13 amps/circuit if used with 45750 Mini-Fit+ HCS crimped terminals and 16 ga. wire. The one you picked out is only rated to 5 amps/circuit.
Here is the data sheet
http://www.molex.com/molex/products/datasheet.jsp?part=active/0026013116_PCB_HEADERS.xmlCheap Bastards