Good day fellow Lac enthusiasts

I've got a dumb question although there is no such thing..

For beginners the vehicle is a 1988 Brougham d'Elegance and my problem lies with the trunk motor bolts. Specifically, the 3 that hold the motor itself in place once the plastic cover has been removed.

I just purchased the vehicle in March and the I D 10 T had the clear tape holding the plastic motor cover over the moter. I've been working on the mechanical aspects and just got around to pulling the cover to see what the deal was; well there are 2 of the 3 aforementioned bolts missing. So I'm assuming this motor was replaced and he lost the bolts and this was his idea of a "fix". I'm about to change the weatherstripping with an OEM replacement and wanted to address the motor issue before-hand.

I have taped this contraption back in place because without it I cannot close the trunk; I would just ****** the bolt out and take it to a shop and show them the bolt I need but I can't ride with an open trunk. Any ideas as to the size of these bolts? I can figure out the head size but not the width etc. needed to get a correct replacement and searches for such come back with replacement GM bolts on ebay or repairs for the motor - only mentioning there's 3 bolts holding it in place.

My first...second post - this forum has already helped me a ton and I'd like to say thanks in advance; I'm impatient so if I get this before a response I'll reply back with the size and whatnot they are.

 

M6-1.0 x 16mm; tight fit but does the trick.