Wiring a big shackle

[corkonian1]

Having had a shackle on my mooring open , can anyone tell me the correct method of wiring a big shackle thats dragged over the sand continually.I suspect a plastic tie wrap would be worn away and most types of wire would corrode quickly. /forums/images/graemlins/confused.gif

 

[bugs]

you could drill a hole through the bolt and the mating eye once tightened. A split pin, spring pin or nut and bolt through the drilled hole will stop the pin working loose.

 

[lexi]

You could use a stainless tie wrap like the ones in Screwfix catalogue or the type that MOT stations use to hold CV rubber boots on.

Alex

 

[bugs]

forgot to mention. I've found Monel seizing wire to be corrosion and wear resistant. All chandlers have it. I use cable ties at the moment and while they may wear by the time it happens the threads have usually gunged themselves beyond loosening. After that its plain old corrosion and wear on the shackle itself.

 

[Niander]

I like bugs idea the best...rather than thin wire as getting dragged over the sand continually....

 

[Grajan]

This method depends on the size of the shackle being used For 1/2 inch pin and larger drill through the threaded end of the shackle and pin and insert wooden peg or using a centre punch make three indentations around the thread joint where the shackle pin comes through the body of the shackle but I would use a cable tie and or wire as a secondary fixing Do not over tighten the shackle as this starts to strip the threads and within a very short space of time will slacken and work its way out!

 

[Poignard]

How about one of these?

 

[MIKE_MCKIE]

They are the biz. We use them for all lifting applications as mandatory & if I am happy to stand underneath 40 tonnes of miscellaneous steel & cargo, you may rest assured that it will not come undone! Appreciate that moorings are different to lifting, but security is the same wherever. Well greased stainless split pin is a plus when you do eventually come to undoing it!

 

[bugs]

they look great.
And you dont risk breaking the surface if your shackle is galvanised or treated.

 

[tedbarnes]

Be very wary of mixing metals under water - the problem is likely to electrolytic action rather than corrosion, so what may be finefor lifting equipment may only last a month or so in sea water.

 

[Poignard]

Absolutely right!

 

[boomerangben]

I can never understand why bolt type anchor shackles are not standard when it comes to moorings and anchoring. In my mind, these are the ONLY item that is satisfactory for connecting the chain to the anchor stock. The fact that the bolt is designed to spin without it undoing must be a bonus. True, you have to get the split pin material right, but in theory at least a bent galvanised nail would be adequate.

 

[GMac]

One of these beats any mousing of any sort anyday.

 

[Strathglass]

[ QUOTE ]
One of these beats any mousing of any sort anyday.

[/ QUOTE ]

That is exactly what I plan to do this morning to the large shackles on my ground chain and the smaller shackles on the riser.

My welder however is the ever faithfull 30 year old SIP 140.

I have even swedged a galvanised core wire inside the rope gromet holding the mooring buoy to the riser chain.

Apart from the fact that the shackles won't unscrew it also adds another barrier against the lighter fingered brigade asuming ownership of the buoys.

I would never consider using any stainless bits near a mooring chain in salt water. That is a certain way to bring about disaster.

Iain

 

[GMac]

Use plain old General Purpose rods, nothing flash.

Good post you did there.