Bolt specs for Spoiler corner pieces

[DPDISXR4Ti]

As you may know, in behind that small cover in each of the rear spoiler corner pieces, one bolt fastens the piece in place using a nutsert in the body. One of my nutserts is gone and the other seems like the threads may be buggered. Best I can figure it's a M6 x 1.0, but just thought I'd ask if anyone can verify before I take my tap to it and order/pick up a SS nutsert for the other side.

[DPDISXR4Ti]

Figured out that it's M5 x .8. Needed a flashlight to see that the threads are set down in the hole. A 6mm bolt fits snugly in the unthreaded portion, so that's what was throwing me off.

The good news is that I've already got 5mm SS nutserts on order. The spline O.D. seems to be something of a standard at 7mm, which is the size of the holes in the hatch.