Techno
04-26-2001, 06:37 PM
I was adding up what I needed to get in fasteners for my partial re-rig and guess what I discovered purely by accident, Brass nyloc nuts on all but the two steel bolts for my OB and jack plate. I have taken the OB off twice and the jack plate once and never noticed them. I couldn't believe it so I scratched them and they are brass.
If it wasn't for the two steel bolts I wanted to replace I probably still wouldn't have noticed, I was checking to make sure the SS bolts had SS nuts and not steel.
So I have stainless steel, aluminum, and brass all touching, I wonder what kind of reaction this makes.
On my last boat I used grade 8 socket head bolts for the plate. sometime later I removed a bolt and found that half of the bolt was gone, the aluminum hole was slightly larger but not much. I don't know if the aluminum wore the bolt or if I made a battery and it eroded the bolt. This is one reason I like the pipe through the transom method. I can remove one bolt and check it out.
If it wasn't for the two steel bolts I wanted to replace I probably still wouldn't have noticed, I was checking to make sure the SS bolts had SS nuts and not steel.
So I have stainless steel, aluminum, and brass all touching, I wonder what kind of reaction this makes.
On my last boat I used grade 8 socket head bolts for the plate. sometime later I removed a bolt and found that half of the bolt was gone, the aluminum hole was slightly larger but not much. I don't know if the aluminum wore the bolt or if I made a battery and it eroded the bolt. This is one reason I like the pipe through the transom method. I can remove one bolt and check it out.