Bolt layout for chain plates

Discussion in 'Boat Design' started by powerabout, Aug 10, 2008.

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  1. Butch .H
    Joined: Apr 2008
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    Location: South Africa

    Butch .H Senior Member

    Hi All. my boat has chain plates with stainles steel studs. Please view the attached photo and please advise. My boat is all wood but the bolt(ss) has rusted to nothing. Fortunatly I am refitting and found this problem.
     

    Attached Files:

    Butch .H, Aug 17, 2008
    #16
  2. BHOFM
    Joined: Jun 2008
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    Location: usa

    BHOFM Senior Member

    How long did that take?
     
    BHOFM, Aug 17, 2008
    #17
  3. Butch .H
    Joined: Apr 2008
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    Likes: 12, Points: 0, Legacy Rep: 205
    Location: South Africa

    Butch .H Senior Member

    I am not sure when these were fitted probebly ten years or so. Not sure if one can expect stainless to do this in that period.All the other rigging is isolated from the chain plates by means of dead eyes.
     
    Butch .H, Aug 17, 2008
    #18
  4. Crag Cay
    Joined: May 2006
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    Location: UK

    Crag Cay Senior Member

    Stainless hates places that are damp, but free of oxygen.

    Keel bolts, chain plates (especially through plywood bulkheads), internal structures of rudders, sometimes even propshafts in rubber cutless bearings (especially in the tropics) are all places where you need to regularly check if your are using stainless, even it it's 316 (A4) and doubly so if its 304 (A2).
     
    Crag Cay, Aug 17, 2008
    #19
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