Quoted from Mr_Tantrum:

For those of you who have replaced the raptor tower ramp left flap screw, I just discovered something. While I've not noticed an issue on my new JP, I thought I would proactively check after seeing so many comments about it. So, I manually rolled a ball over that screw, and indeed the ball makes contact with it.
While I've not read all of the posts, I've read where people get rid of it altogether, grind it down, etc. My first option was to replace it with another screw that I had in my spare screw bin. After looking through everything, I couldn't find anything with a different head in that size, but I did find a screw exactly like the OEM (only a few mm longer) and I noticed the head looked to be just slightly smaller in diameter even thought it was the same height. My idea was to grind the head down on this test screw to see how it worked, but before I did I installed it just to make sure being a little longer that it would still fit correctly.
To my surprise, after I put the new screw in the ball no longer made contact with it. This leads me to believe that the issue with the OEM screw may not be its height, rather, the diameter of the head. My suggestion to others would be to take a little diameter off the head with a grinder/file/Dremmel tool and see what your results are. Alternatively, make sure the screw is fully secured, mark the inner edge with a pencil or Sharpie, then grind off that edge a little to make the diameter at that point smaller. The good thing about this is that you maintain the full depth of the slot for if/when you ever need to remove the screw in the future.
Here you can see the OEM screw on the right, and my replacement is on the left. It's really hard to tell from the pic since they look pretty much identical. However, I broke out the calipers to measure them and the OEM screw measures 5.5 mm in diameter while my replacement is 5.3 mm (height was exactly the same). Hard to believe, but in my case just 0.2 mm in diameter was the difference between the ball hitting the screw and clearing it.
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