(ignore the finger-selfie)
It's a M6 in size, the allen socket in the head is 5mm.
Installed the Intercooler and went to swap to a smaller pulley and apparently they used thread locker on these. Three came out, but this one stripped. I need to get this bolt out with a minimum of damage to the blower. I could, in theory, stand to lose the pulley that's on there. But I'd rather not, just in case. And I'd really like to do this without messing up the existing threads.
Any recommendations are are appreciated. Tools, a shop, etc. I've thought of grinding the head square and using a wrench, drill and use a bolt-out. Use a small nut remover, etc... I've just had mixed results with these methods in the past and I'm hoping for more experienced advice.
Thanks.