I am looking for an embedded pin, D-shackle that is galvanised rather than stainless steel to replace the increasingly rusty galvanised one that connects my anchor to my 10mm galvanised chain. Does anybody by any chance know a supplier for these?
I don't know about a source of the shackles, but I would say you are quite right to use galvanised, (but at least one size up from the size of your chain).
The only time that I innocently used a stainless shackle, was as part of the connection of a "Chum" onto the anchor chain. The boat was then left at anchor for a month, and by then the galvanising on the 3 or 4 adjacent links had completely gone. Why introduce dissimilar metals, when it is entirely unnecessary?
I am surprised that galvanised versions aren't available and as an alternative was considering a galvanised, non-swivel anchor connector instead though they are pricey. I am told they are actually stronger than a shackle but just wonder about the implications of sideways loading. Thanks for all the advice and suggestions.
Replace the pin with an ordinary bolt
If you wish take the thread right through and fit a lock nut to prevent it coming undone