Went to the hardward store to buy stainless steel lag bolts to rebunk my trailer. The Stainless Steel ones I need are $1.59 per bolt. I need 30 bolts all together to do all the bunk brackets. That's almost $50 for hardware. I noticed galvanized is somewhat cheaper. How much of a drop in corrosion resistence am I looking at if I use galvanized bolts ?? Any imput will be greatly appreciated before I spend my money. I don't mind spending the money if they (stainless) will preform that much better.