[pitchinguy]

Originally Posted by appa

I could have used the other bolts that came with the risers and used the center hole, but they had no head - just a stem. If I did use these, they would have sat square but how do you tighten them down.

Am I just stuck on stupid or something?

Using the center holes on mine, everything lined up perfectly. I used the nuts off the OEM riser bolts. If your OEM's are bolts w/o nuts you can get nuts at any decent hardware store or machine shop.