[TowerTalk] Bolts for Orion OR2800 rotor

[Georgek5kg at aol.com]

I need to replace the rotor-to-mast-clamp bolts on my OR 2800.   They are 
3/8-24 x 4" Grade 5 bolts zinc plated, and are totally rusted.
 
Since I live on salt water, I would prefer to replace them with  stainless.
 
My question is: Is there any problem replacing the Grade 5, zinc plated  
bolts with stainless in this application?  Also, what is a good source  for 
3/8-24 x 4" ss bolts.
 
Tnx, George
 
George  Wagner, K5KG
Sarasota, FL 
941-400-1960  cell