Anchor system strength

[Ed]

For the last 6 months or so I've been trying to find components that will provide maximum strength while staying within the constraints of my open faced anchor puller.* I have G4 (high test - 3900#) 5/16*chain.

The problem I have is finding an anchor shackle that comes close to the rated load of the chain.* Does anyone have a source for such a critter?* Thanks.

Ed

[FF]

When you purchase a drum of chain frequently the ends will have oversized links , that can take a larger shackle.

Just by the chain from a supplier that can provide a drum.

GG

[Keith]

Try http://www.fisheriessupply.com/online/default.asp

[ktischler]

1st Chain Supply offers alloy shackles specifically for use with G4 chain. I have 5/16 G4 and have their shackles. Working load on the shackle is 4,000 lbs.

http://tinyurl.com/2apxxq

Ken Tischler

-- Edited by ktischler at 13:09, 2008-03-30

[Ed]

Ken,

That looks very promising.* I'm surprised the pin is larger than the 3/8ths shackle.* My question is, will the 7/16th pin fit thru the chain link?* I don't have the advantage of having the enlarged end link from a barrel.

Thanks.

Ed

[ktischler]

Yes, it fits. Inside width of the chain link is 1/2", pin on the shackle is 7/16". Dimensions for both are on the 1st Chain web site. I can send you a link, if you like.

Ken

-- Edited by ktischler at 14:01, 2008-03-30

[ktischler]

Here are G4 dimensions...

<table border="1" cellpadding="5" cellspacing="0" width="368"><tbody><tr><td colspan="7" bgcolor="#ff0000"> Very Important Link dimensions:*
</td> </tr><tr><td align="center" width="35"> Chain
Size
</td> <td align="center" width="39"> Thick-
ness
</td> <td align="center" width="42"> Inside
Length
</td> <td align="center" width="37"> Inside
Width
</td> <td align="center" width="47"> Outside
Length
</td> <td align="center"> Outside
Width
</td> <td align="center"> Links/
Foot*
</td> </tr><tr><td bgcolor="#00ffff" width="35"> *1/4
</td> <td align="right" bgcolor="#00ffff" width="39"> .274"
</td> <td align="right" bgcolor="#00ffff" width="42"> .845"
</td> <td align="right" bgcolor="#00ffff" width="37"> .41"
</td> <td align="right" bgcolor="#00ffff" width="47"> 1.39</td> <td align="right" bgcolor="#00ffff"> .96</td> <td align="right" bgcolor="#00ffff"> 14.2</td> </tr><tr><td width="35"> *5/16
</td> <td align="right" width="39"> .330"
</td> <td align="right" width="42"> 1.03"
</td> <td align="right" width="37"> .50"
</td> <td align="right" width="47"> 1.69</td> <td align="right"> 1.16</td> <td align="right"> 11.7</td> </tr><tr><td bgcolor="#fffd9c" width="35"> *3/8
</td> <td align="right" bgcolor="#fffd9c" width="39"> .394"
</td> <td align="right" bgcolor="#fffd9c" width="42"> 1.22"
</td> <td align="right" bgcolor="#fffd9c" width="37"> .60"
</td> <td align="right" bgcolor="#fffd9c" width="47"> 2.01</td> <td align="right" bgcolor="#fffd9c"> 1.39</td> <td align="right" bgcolor="#fffd9c"> 9.8</td> </tr><tr><td bgcolor="#fffd9c" width="35"> *7/16
</td> <td align="right" bgcolor="#fffd9c" width="39"> .467"
</td> <td align="right" bgcolor="#fffd9c" width="42"> 1.40"
</td> <td align="right" bgcolor="#fffd9c" width="37"> .66"
</td> <td align="right" bgcolor="#fffd9c" width="47"> 2.33</td> <td align="right" bgcolor="#fffd9c"> 1.59</td> <td align="right" bgcolor="#fffd9c"> 8.6</td> </tr><tr><td bgcolor="#fffd9c" width="35"> *1/2
</td> <td align="right" bgcolor="#fffd9c" width="39"> .510"
</td> <td align="right" bgcolor="#fffd9c" width="42"> 1.59"
</td> <td align="right" bgcolor="#fffd9c" width="37"> .77"
</td> <td align="right" bgcolor="#fffd9c" width="47"> 2.61</td> <td align="right" bgcolor="#fffd9c"> 1.79</td> <td align="right" bgcolor="#fffd9c"> 7.6
</td></tr></tbody></table>

[Ed]

Fantastic!* Thanks.

Ed

[FF]

A hammer and simple taper should be fine for opening a .60 opening to .66, to insert that 7/16 pin.

FF

[ktischler]

Well, his 5/16" chain has an inside width of .5", and the 7/16" pin is .4375" in diameter, so no hammering should be necessary. It worked perfectly on my 5/16" chain.