Hey guys

Anyone know what the original bolt/nut sizes are for mounting the mirrors (98)
Or where I can order them? Was going to make a trip to the hardware store but I don't believe I have any of the original sizes

I got new mirrors to replace the two different ones that don't go on the truck and it looks like they just used what they had laying around and not the original hardware (they're all different sizes and missing some)

Thank you