Does anyone know the thread pitch of the M8 bolts required to mount a Pioneer 4270? I've seached many threads here to no avail and even Google came up empty. Pioneer omitted this critical information from the user guide and there are multiple pitches available (1.00 and 1.25) for M8 bolts. Totally inexcusable to be this sloppy in the documentation for such an important specification.

Course thread for sure..........which I believe is the 1.25

Thanks, I'll give that one a try. I did manage to find some info which said when the pitch is omitted its assumed to be the "coarse" thread but I had no idea what that translated to in terms of an actual number. If those are the only two sizes available for M8 it stands to reason the 1.25 is the correct one.