The terminal screws are sourced from China and the part numbers are 2EDG5.08 8p. Someone else asked about this and found the equivalent digikey parts:
2 plug: http://www.digikey.com/product-detail/en/20020007-G021B01LF/609-4179-ND/2509135
2 header: http://www.digikey.com/product-detail/en/20020109-G021A01LF/609-4257-ND/2509105
8 plug: http://www.digikey.com/product-detail/en/20020006-G081B01LF/609-3847-ND/2261392
8 header: http://www.digikey.com/product-detail/en/20020109-G081A01LF/609-4261-ND/2509144
Note, however, the cutouts on the 1.3 enclosure are not high enough, so I suspect these parts won’t be able to pass through the enclosure (unless if you can cut the enclosure yourself, or leave the controller without enclosure).