These connectors are widely used in remote control and automotive applications, mainly on the battery/power side as the connectors will not come loose when mated. They can however be used for any application.
This set of tamiya connectors with gold pins will allow you to make up 5 sets.
5 x Tamiya female connectors
5 x Tamiya male connectors
10 x Gold plated pins
10 x Gold plated sockets