ladywendolyn
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1964 Golden Falcon
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Post by ladywendolyn on Mar 31, 2017 13:43:26 GMT -8
I know that there are certain metals that corrode when brought in contact with aluminum. Can someone tell me if these choices are ok?
-Galvanized lag bolts
-sink plated screws
- copper staples
Thanks
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Post by bigbill on Mar 31, 2017 17:36:23 GMT -8
Zink plated / galvanized screws do not get along with aluminum.
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ladywendolyn
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Post by ladywendolyn on Mar 31, 2017 17:43:58 GMT -8
Really? The guy at the hardware store told me that those were the right ones! Yikes. Glad I've only done a few. I asked the question because I was feeling a bit uneasy not knowing for sure. I think I can switch them out still.
What plating or finish should I be getting?
I should mention:
-the galvanized screws went through 2x2s into the steel frame... so maybe that was correct?
-the zinc screws are on the skirting. Could I coat the heads with silicone in order to create a barrier between the metals?
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mrmarty51
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Post by mrmarty51 on Mar 31, 2017 18:54:07 GMT -8
The screws through the 2X2s and into the steel frame is good.
I believe that stainless steel is the preferred choice for staples and screws.
It would require more than silicone to keep the zink screws from coming into contact with the aluminum.
A larger hole than the screw would need to be drilled through the aluminum and into the wood a tiny ways, a stainless washer slid onto the screw then a stainless or plasticated bushing would need to be slid over the screws to keep it completely insulated from touching the aluminum.
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htchevyii
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1966 Aristocrat Lo-Liner
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Post by htchevyii on Mar 31, 2017 19:13:57 GMT -8
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mrmarty51
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Post by mrmarty51 on Mar 31, 2017 22:04:58 GMT -8
And some more very good information, that should take the questionables out of choosing the proper fasteners. |
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RinTin
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Post by RinTin on Apr 1, 2017 9:30:33 GMT -8
Copper is a definite no-no
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