I rounded the flats on the seatpost clamp bolt (it's an Allen bolt; i.e. I turn it with a Allen key) that came with my bike (2014 Fuji Absolute). I found a replacement for the bolt at a local hardware store, but it's a Philips screw, not a bolt. It's the same size and fits the clamp perfectly.
Is it safe to install? Is there any chance of damaging the bike?
My primary concerns are due to not really understand what torque has to do with seatpost clamps, and other bike repair forums insisting you use a torque wrench lest you damage things. But I think that might apply more carbon fiber bodies.