Size of bolt in '89 Camry

Already ran a quick search, couldn't find anything. Anyone that has a Gen 2 V4 (manual too, although not sure if that matters) camry, I need the size of a bolt I'm missing. It's on the lower end of the bracket that holds up the front end of the alternator that in turn keeps the drive belt tight. I've got the two up top, but for some reason, the one at the lower end of the bracket that connects to the engine block is missing. Any help would be excellent, thanks.

Hey, I have experienced that problem on other toy's. It must vibrate loose or something. If you can get a bolt out from another braket that bolts to the block it should be the same size. We have Farm & fleet here but any auto place should be able to sell you one. It's probly hardened.
Bill

Where could I find another bracket that's connected to the engine block?