Single wall top - #of holes and spacing

[awelle01]

I was wondering if someone with an unmodified/stock single wall top could measure the holes on top & bedside rails. It seems that the single wall top that came with my blazer project has 6 holes on each side of the top, which is one more than i would expect since a set of cage nuts is 10 (5 for each side). I would like to fill the unnecessary holes on the top of bedside before it gets paint to clean it up. Any help/pictures would be greatly appreciated!