Power Steering Pump issue

After going through all of the trouble of jacking up the engine to remove my pump, pulling off the bad pulley, and pressing on the good pulley, I look around and the bolts that hold the pump in place are GONE! I have a suspicion the neighbor's kids know what happened to them, but nevertheless, does anyone know what size these bolts are and where I can find them? Pump is off a 99 pontiac Grand Am V6 VSR...

Welcome to AF.

I hav no clue exactly what the length and threads are,
but if you call a NAPA or any Auto Parts store, they should know and hav them in stock.