I could have done with some of those bolts for the Chinese DRO scale installation on my mill (on both the scale and reader head). The second row down, second one across would have worked fine.
I was just lucky I took it apart when I got it and noticed them, I then moved the scale to the front of the table and never used them. What gets me is mine has a swivel table which they could have swung around to drill the holes, but it looks like they just drilled it in the normal position. Just goes to show the scales can be installed like this and still work fine.
I did have a photo, but I cant seem to find it.
Dave