Chain and shackles

What Recovery Equipment do you use.
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Tristan
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Wed Jul 23, 2008 4:43 pm

What size chain and shackles should I use for recovery :?:
Also I am assuming it must be HT steel is this correct :?:
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CasKru
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Wed Jul 23, 2008 5:28 pm

Tristan wrote:What size chain and shackles should I use for recovery :?:
Also I am assuming it must be HT steel is this correct :?:
Shackles I would not recommend anything smaller than a 3/4" Bow shackles. I don't think it needs to be HT. Is there a particular reason why you want to use chain in stead of straps?
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Tristan
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Wed Jul 23, 2008 5:42 pm

I have a strap which I will use if there is another vehicle to pull me.

The reason I want to use chain is so that I can use my high lift jack as a winche which obviously I will only be able to pull about a 1m at a time :( So I need the links to connect for each stretch.

I mostly do my 4x4ing by myself :| I dont even know anybody else out here were I live who has a 4x4 that could come to my rescue :(
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Wed Jul 23, 2008 5:45 pm

I also use straps but have a piece of chain just for...if the situation needs an anker point like a spade and spare wheel to be burried deep in a hole..
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Thu Jul 24, 2008 1:18 am

Have a look at this article:

http://www.nissan4x4.co.za/GH_ShowArticle.asp?HID=27


Here's some info I recently posted on the cruiser forum after a member asked if he can use a commercial shackle for recovery.....probably not entirely relevant....
Ian, DO NOT USE A COMMERCIAL SHACKLE FOR RECOVERY!!!!!!!

Here is why(and to add what has already been said).

RATED Bow and D-shackles of the same size, have the same load rating.
Commercial D-shackles are a very different story. Commercial D-shackles have much lower load rating and this is the main reason why "experts" always tell us to use Bow shackles as you cannot get it mixed up. Because of this, it has become a myth that D-shackles are weaker than Bow shackles.....and I bet you many of the so-called "experts" don't even know this.

Any rigging expert will tell you the main idea behind the Bow shackle is to distribute the load on the eye of a webbing strap.

Here are some shackle load ratings from a Haggie Rand catalogue. Size given as pin diameter.


Crosby Greenpin, Safety factor 5.4/1. Work Load Limit permanently shown on shackle. Load rating the same for D and Bow shackles.

16mm - 3.25 Ton

20mm - 4.75 Ton

22mm - 6.5 Ton


Galvanised Large D Shackles, stamped with rating.
(Safety factor not given)

16mm - 1.5 Ton

20mm - 2.0 Ton

22mm - 3.0 Ton

Commercial D Shackle, galvanised, untested body & pin
(As these are untested, the load ratings are stated as approximate values)

16mm - 0.8 Ton

20mm - 1.1 Ton

22mm - 1.5 Ton


Note the massive difference between the proper rated shackle and the commercial shackle!!!
Barto de Koning
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Tristan
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Thu Jul 24, 2008 9:01 am

Thanks Barto :D That is a very clever design :wink:
Unfortunately here in East London there are ZERO!!! 4x4 supply stores :x
There was a poorly stocked one but I tried to go there a few days ago and now it is just a workshop :(
So I will have to source these things some where else like Haggie Rand :idea:

I must admit the idea of standing on top of potential little steel missiles scares me a bit :shock:
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