98 windshield fluid reservoir bolt size?? help??

I am doing the fiberglass repair on the neck of my reservoir and I removed it several months ago and just now getting around to the repair.. I can't seem to find the 4 bolts that hold it onto the truck... I believe they are 10mm but does anyone know the length??? Thanks in advance!

 

10mm = 3/8" so look at the flanges and figure out how long they need to be

I cant see where them being too long is an issue so get them a little long if you aren't sure but my guess is 3/4" (20mm) to 1 1/8" (30mm) long is what they will be

 

thanks, I actually found them