Inside of my full suspension bike pivots is cracked! Is this normal? I just noticed it when I was cleaning my bike after a long day downhill mtb. Are those screws? Thanks for any replies.
Are you sure those hex bolts are cracked? 

They could instead just have peeling chrome.  Hex bolts tend to accumulate water and grime and thus corrosion. It could just be surface peeling of the chrome. 

I'd poke at them with a sharp ice pick and see if it's just surface peeling of chrome or if the bolts are actually cracked. If it's the former you can ignore. If it's the latter, follow @criggie's suggestion.