Mine where in the box where the rest of the parts should have been. This seems to be a common occurance here in Canada of not getting all the parts to the soft top. Check again and if you can't find them go back to the dealer and let them know. In theory they should help you out by replacing them. Worst case if you exhaust all efforts by going straight through all the dealer management and the Jeep head office then I'm pretty sure the dealership can order just the missing pieces from Mopar. Not sure if the average consumer can though because they only advertise the whole assembly with or without the canvas on their website and I haven't gotten to the point of calling to see if I can do the same for my missing pieces.
Hope this helps.