Watch out for rust staining on stainless fittings

benjenbav

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I went to replace the snap carabiners that we use on the davit wires to hoist our tender up. I went to tighten the shackle and this happened. A reminder not to ignore rust staining. It isn’t always merely cosmetic.
View attachment 151372
View attachment 151373
Looking at the way the bolt has failed, I wonder if the cause was sea water trapped between the two faces of the thread - over a period of some years?
 

Wansworth

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I had alittle Macwester double ended and found after a year the stainlesssteel machine screws holding on the rudder where actually just the heads holding on by a thin film of metal with the core completely gone
 

Bodach na mara

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I had alittle Macwester double ended and found after a year the stainlesssteel machine screws holding on the rudder where actually just the heads holding on by a thin film of metal with the core completely gone
What's wrong with that? Any RN Dockyard would fix that with some super glue.
 

RunAgroundHard

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Thanks for posting. It is indeed easy to dismiss as light staining, just surface discolouration.

I would be more worried about the 1858 lead line surveys! (-;
 
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