Thanks for the replies. Sorry about the false alarm. I verified the thread pitch on my bolts is indeed M8x1.25. Turns out a few shots of brake clean didn't clean out the holes as well as I thought. They were still quite gunked up. I'm in central TX, so no road salt, but I guess a few years of road grime. Is this tap ok to use to clean or do I need to get a chaser tool? Also, did y'all remove the plastic frame caps or leave them in?