I went to ALOT of trouble. A LOT of trouble, learning the different sizes, styles and working of all of the fasteners on an AD. I did all of this research so that I could replace every single fastener with Stainless Steel. Not that its better in all respects. It has the advantage of not being a coating, but being 100% stainless thus no rust and no corrosion. If you do this, be warned there is about 4 types of Stainless that span from grade 2 to harder than grade 8. All of this was navigable due to a company Totally Stainless. Costs a lot more but the project I am working on nothing else is acceptable. It really pays to fully understand your needs. Don't use longer bolts than necessary, and make sure you have at least two threads sticking out beyond the nut. There are websites that explain the engineering aspects of fasteners. A little research goes a long way!
