Not on an i30n I'm afraid, these are for struts with a 2 bolt attachment to the hub assy..
I30Ns have the same MacPherson strut setup as our Veloster Ns and many other vehicles who use these same camber bolts with success. My friend's DC5 Integra is running these to help him achieve -4* camber in the front and their suspension setup is exactly the same as ours in the front, with the exception of the steering rack being positioned differently (which doesn't affect the camber adjustments at all).
I also mentioned that a few people have already used them on their Ns with success, such as @RPM8300 and one of his friends as well with the same car. Have you actually tried it yourself or are you just saying what you think will happen?