Here's a close up photo of the screw compared to a standard M3 it's hard to tell the difference but it's there I had a slight amount of play with the standard screws as soon as I put these in all the play went away.
I use them on all the front arm holes with incredible success they basically eliminate all tweak or all possibility of tweak due to manufacturing tolerances and make the front end incredibly accurate. I really enjoying the ease of setup on this car and happy to report that the icon 2 gear diff works flawlessly with zero leaks with the kit 1000 weight oil in it.