well, two of the valve cover bolts snapped off as I was snugging them down. I looked but found no info, and if it's in the manual I didn't see it. I was wondering if anybody knew what size and pitch those bolts are. I want to drill out and put in a helicoil. Any help would be great. Thank you!

 

Hi generally the thread size comes automatically with the socket/spanner size, although that's not always the case with Honda, but if you get one of these your always right
Sealey 20pc Metric Screw Pitch Thread Gauge 0.4 - 6mm Folding Leaves | eBay
Also take a look at this