87 328 A/C tensioner pulley stud question..

I'm in the middle of a bunch of updates on my car: cambelts/tensioners, new Sanden AC, fuel hose, etc..), and I'm coming up with one missing part:

Can anybody tell me with any certainty what type of fastener the A/C tensioner pulley mounts with on the top pivot point? This is the upper hole, not the slotted one on the bottom.

I bagged and labeled all my parts, but this one has turned up missing..

I've got the lower small 8mm stud installed with the proper nut and washers for the slot. I just can't seem to find the correct fastener for the top pivot bolt.

If my memory is correct, isn't that a shorter 10mm stud, held by a washer and locknut? It only sets into the cambelt cover, not through it... (?)

If all else fails, I guess I could buy a new bolt. The stud lets you set the exact tightness though...

Anybody know what length I would need if I get a new bolt? Pretty sure it's a 10mm fine thread...

??

Thanks guys,
Greg

Edit: I checked the spare parts book, tav 55, but can't locate any stud. Does look like the outer fastener is a locknut with washer..

 

A ha! that's why there's a gap between the bracket and belt cover-it traps the lower AC mount bracket which I've removed because of the Sanden. gonna need to add a spacer. does look like a 10mm stud there, thanks so much...
Greg

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