Zinc anode attaching hardware (Stainless OK?)

[allingeneral]

I have a fiberglass boat used in brackish to salt water. I am replacing the sacrificial anodes on my Volvo DP-SM lower units. What kind of bolts should I use to ensure that my aluminum lower unit does not corrode at the attachment point?

I have some stainless steel screws that I was planning to use, but after a little research, I have found that Aluminum and Stainless Steel are far apart (pretty much opposite ends) on the galvanic scale, which could result in corrosion of the aluminum.

What material should I use for the attachment hardware? What are the stock fasteners made of that are used on the Volvo outdrives?

Thanks for reading.

 

[Don S]

Re: Zinc anode attaching hardware (Stainless OK?)

Stainless is what Volvo uses.

 

[allingeneral]

Re: Zinc anode attaching hardware (Stainless OK?)

Thanks Don. You're a wealth of knowledge, my friend!