Glad you found it. Are you going to seal the bolts and use it?
Knowing the problem and fixing it are two different things!Wow! Glad you have it sorted out.
Not going to use that head right now, I have plan B at the machine shop right now.Glad you found it. Are you going to seal the bolts and use it?
Maybe, problem is the threads are not exactly 90 degree, some have a little lean to them.Can you epoxy in some studs?
Haven't measured them, but may be a half inch?How deep are the threads
I agree!You can check the depth of the others with a piece of wire with a 90 degree bend on the end. Hook it under the bottom of the bolt hole and mark it to measure. I do think studs are your only answer.