fowlmood77
Well-known member
I have a question about using stainless screws on an aluminum hull. I have done it before but haven't seen the long term results. Supposively it will cause corrosion. What is everyones opinion on this? What is everyone using to secure flooring to the ribs? So far this is what I have come up with during my search for answers. Kinda goes both ways.
1. ...Contrary to what most people think Stainless steel screws do not cause corrosion in aluminum it is the minute gap around the screw subject to friction caused by flexing that promotes the corrosion If you were to use the same alloy alum. screws you could witness it yourself That is why the boats are riveted.
2. ...Another potential corrosion trouble spot is wherever two dissimilar metals meet. For example, corrosion will form where stainless screws are set in aluminum. Treating both metals with a product called Tef-Gel will keep this from happening.
(of course this was referring to a saltwater boat)
3. ...Remember that aluminum and stainless steel will lock together permanently in a very brief time, so when you're ready to make the final installation use a very high grade anti-seize compound on the screws
1. ...Contrary to what most people think Stainless steel screws do not cause corrosion in aluminum it is the minute gap around the screw subject to friction caused by flexing that promotes the corrosion If you were to use the same alloy alum. screws you could witness it yourself That is why the boats are riveted.
2. ...Another potential corrosion trouble spot is wherever two dissimilar metals meet. For example, corrosion will form where stainless screws are set in aluminum. Treating both metals with a product called Tef-Gel will keep this from happening.
(of course this was referring to a saltwater boat)
3. ...Remember that aluminum and stainless steel will lock together permanently in a very brief time, so when you're ready to make the final installation use a very high grade anti-seize compound on the screws