What Bolts for brake Discs

Finaly got my new brake discs but my bolts are all rusted, Going to replace them... Can i use normal Stainless steel bolts or do I need something specific?

Just pic the length you need..............

So cant use standard Stainless bolts from the hardware?

The bolt head has to be exactly the same depth as defore (and probably diameter too) as they mess up the speedo otherwise.