Trying to find locking PCB connectors

Hi guys i have been searching for over a week with little luck. I am trying to find a pcb connector and here is what i need:
Right angle through hole mount
5 amp per circuit
12 to 20 circuits
must be locking

It must be locking as it will be going in my truck and I cannot have it come lose from bumps and or vibrations. I am working on a pcb board so i would like the connector to be solder to the board before it goes into the enclosure.

I am in Canada and would prefer to use newark electronics or something similar as to avoid over border shipping costs and delay.

Thanks so much guys!

Take a look at:
http://www.molex.com/catalog/web_catalog/pdfs/C.pdf
Not sure who will stock them over there, but in the UK most of the big component suppliers have them.
Maybe send Molex an email, to ask for your closest stockists.