Shackles

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ash
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Shackles

Postby ash » Wed Feb 10, 2016 3:42 pm

Hi

I expect that many of us will be looking for new shackles to use with our shiny chain and anchors.

What will you use? and where will you get them?

I was disappointed to note on a recent visit to Gael Force, Hillington that despite their association with FPM Henderson, many of their shackles were unrated.

Ash
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BlowingOldBoots
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Re: Shackles

Postby BlowingOldBoots » Wed Feb 10, 2016 4:53 pm

https://www.s3i.co.uk/wichard-self-lock ... hackle.php

Probably a Wichard flush pin shackle. A bit pricey but worth it if considering the quality and expected life. I don't use a swivel so I only need one, the bitter end being secured with a line.

Also this type, not as expensive:-

https://www.s3i.co.uk/long-d-shackle-so ... ad-pin.php

Note that s3i also offer a testing service, should you require a certified shackle

Information

Our Long D shackles are manufactured by electrical upset methods.

All our Long Dee shackles are made in the UK, and are supplied highly polished.

Should you require your long Dee shackle tested, certified and marked with its Safe Working Load (SWL), please call and this can be arranged.

Testing

marine shackles Tested & Certified To BS EN 10203 3.1b

If you require our long d shackles tested & certified, please contact us, and we will be happy to carry this out.

Once Tested, they are individually marked with a batch reference number and a Safe Working Load (SWL). A certificate will be issued.

They will comply with lifting equipment regulations.
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Re: Shackles

Postby ash » Wed Feb 10, 2016 6:11 pm

BlowingOldBoots wrote:https://www.s3i.co.uk/wichard-self-locking-allen-head-d-shackle.php

Probably a Wichard flush pin shackle. A bit pricey but worth it if considering the quality and expected life. I don't use a swivel so I only need one, the bitter end being secured with a line.

Also this type, not as expensive:-

https://www.s3i.co.uk/long-d-shackle-so ... ad-pin.php

Note that s3i also offer a testing service, should you require a certified shackle

Do you have any worries about using stainless with the galvanised steel?

I don't have a swivel, but would need one shackle with the pin through the anchor, and one with the pin through the chain link.

I thought of stretching the last link into a more round shape before sending for galvanising so that it would take a bigger pin, but worried that I would do more harm than good.

Ash
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BlowingOldBoots
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Re: Shackles

Postby BlowingOldBoots » Wed Feb 10, 2016 8:24 pm

Do you have any worries about using stainless with the galvanised steel?

I don't have a swivel, but would need one shackle with the pin through the anchor, and one with the pin through the chain link. .....


No worries about using stainless with galvanised steel but that is more to do with ignorance of any potential detrimental facts; should I be worried?

So far I have only ever used one shackle, you can get extended D shackles (see s3i catalogue) which may eliminate a space out issue.

Alastair
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Re: Shackles

Postby BlowingOldBoots » Wed Feb 10, 2016 8:40 pm

BlowingOldBoots wrote:
Do you have any worries about using stainless with the galvanised steel?

I don't have a swivel, but would need one shackle with the pin through the anchor, and one with the pin through the chain link. .....


No worries about using stainless with galvanised steel but that is more to do with ignorance of any potential detrimental facts; should I be worried?

So far I have only ever used one shackle, you can get extended D shackles (see s3i catalogue) which may eliminate a space out issue.

Alastair


Ash,

According to the information from TOP (link below) most so called galvanised shackles are in fact electro plated which is why 'galvanised' shackles rust as this process is incompatible with galvanised chain. Another point being made is that stainless marine grade shackles and galvanised chain are really not too much of an issue when it comes to galvanic corrosion and dissimilar metals......

........ and counter arguments as well. I think I will look for galvanised, certified shackles now.

http://www.ybw.com/forums/archive/index ... 31316.html
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Re: Shackles

Postby BlowingOldBoots » Wed Feb 10, 2016 8:44 pm

The search for certified, galvanised shackles was easy peasy, Jimmy Green Marine: -

https://www.jimmygreen.co.uk/item/37/ce ... d-shackles
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Re: Shackles

Postby Aja » Thu Feb 11, 2016 8:19 pm

BlowingOldBoots wrote:The search for certified, galvanised shackles was easy peasy, Jimmy Green Marine: -

https://www.jimmygreen.co.uk/item/37/ce ... d-shackles


Ah.... too easy! How about certified, galvanised d shackles with flush pin?

Regards
Donald

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Re: Shackles

Postby BlowingOldBoots » Thu Feb 11, 2016 10:34 pm

The flush pin is easy, just cut off the eyelet sections and paint over with a zinc rich paint. Lock with thread locking compound, the 3M stuff is super strong .

Apparently the jimmy green certified shackles are designed to fit in the chain link so might not need an extended D.
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Orla
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Re: Shackles

Postby Orla » Fri Feb 12, 2016 8:18 am

For anybody who hasn't been on this site before, some great info.

Looks like the shackle will become the weakest link....

https://coxengineering.sharepoint.com/P ... ctors.aspx

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mm5aho
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Re: Shackles

Postby mm5aho » Fri Feb 12, 2016 8:37 am

I used S3i for new standing rigging last change. Did a good job at a fair price. I sent the old stuff, and they returned it with the new set.

Mixing stainless and galvanized isn't a big problem except where there is continuous immersion in seawater. Most don't anchor that long!
I use a Kong connector between anchor and chain, and this connects and swivels Seems to have lasted OK, a few scratches along the length dragging over rocks etc, but in good order after so many years use.

Electroplated zinc isn't incompatible with galvanizing. Both are a zinc coating. Zinc to zinc contact isn't an issue. Where electroplated zinc falls down is in the thickness of the zinc. Life expectancy is directly proportional to thickness. Electroplating can be controlled, and can deposit as little as 3 microns, more commonly 8-10. (a micron is a millionth of a meter, 1000 microns = 1mm) And the zinc isn't alloyed to the steel, just deposited there, so there's a defined cleavage point between steel and zinc. In galv, its alloyed there, so the boundary is indistinct with metals migrating both directions into each other.

I've bought quote a few SS items from Painless Stainless. http://www.ebay.co.uk/itm/Pack-x-2-M12- ... XQ1ZhTgfk2
Not rated, certified etc, but I just get a bigger size, and looks OK. Quality of what I've bought was good.
For fasteners I've used Aruncas, another eBay shop. Excellent.
Geoff.
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