What size bolts go in the rear child tether anchors?

[OutbackMat]

After reading through my BG's manual, I located the child tether anchors, but it looks like it's really just a nut welded to the top of the hatch frame. So does anyone know what size bolt goes in there?

[Kraziken]

After reading through my BG's manual, I located the child tether anchors, but it looks like it's really just a nut welded to the top of the hatch frame. So does anyone know what size bolt goes in there?

Do you have the factory part?

I actually bought it, but never installed it. I can track down the part number if it would be of interest.

[Reason]

I have the bolt on mine. Next time I'm at the hardware store I will check the bolt size.

[OutbackMat]

That would be very cool--thank you! I'd just as soon not pay $5 or whatver the stealership charges for a damn bolt.