Update on Sidesteps guys, few questions

Ok got my 4 inch oval steps in yesterday and went to put them on today but ran into a few minor issues. For the bracket holes at the front of pass door, there is a bolt in one of the holes, middle hole is hollow, and the third hole has a nut on the outside of bracket base and the hole is threaded. I will have to call the dealer tomorrow if you guys don't know what size bolt that is. I should be fine just putting a bolt in that one hole and a nut on that bolt that's in there and ofcourse putting one of the supplied nuts and bolts through the middle hole.

The middle hole of the bracket is larger than the 2 outer holes of the bracket as well as the middle hole of the base of the truck. Just to test fit today, I used to larger washers on outside and inside of bolt to keep it from sliding through as I test fitted. I can just get a larger bolt for the center for extra strength or security I guess though using the washers should suffice if I had to.

If any of you know what size bolt that is in the truck's bracket base let me know please. The steps came with 12 M8 30 bolts and 8 M10x25 bolts. The M10x25's are for the steps to bracket

 

Anyone lol? Where you guys at