Aluminum fasteners

Discussion in 'Materials' started by JJO, Apr 13, 2015.

  1. JJO
    Joined: May 2014
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    Location: SE. Michigan

    JJO Junior Member

    I found some replacement aluminum fasteners from Fastenal that are 2024-T4.

    This alloy can have slightly under 5 percent copper as an alloying element.

    I would prefer a 6061 fastener. But... would I be in big trouble if I used them to fasten a new wood transom core to an aluminum boat?

    1973 StarCraft...
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    No, particularly in fresh water use. It should be OK.
  3. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    In fresh shouldn't be so much of an issue.
    However in sea water, yes. Circa 5% Cu is a lot and will cause corrosion issues.
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