G5 5/16 HT Anchor Chain

[interlude44]

My anchor chain is stamped G5, which I presume to be stronger than G40, but perhaps not. It was supplied with my boat by its European manufacturer.

I now need a new windlass to replace my Simpson Lawrence Sprint 1500, and Lewmar have said that their various 5/16 Gypsy offerings may not work.

Any advice would be helpful? Thanks.

[imagine2frolic]

If the dealer of the windlass is close. Cut off a piece of the chain, and take it there. Any dealer should be able to tell you if it will fit if you know exactly what you have.....i2f

[DwayneSpeer]

Originally Posted by imagine2frolic

If the dealer of the windlass is close. Cut off a piece of the chain, and take it there. Any dealer should be able to tell you if it will fit if you know exactly what you have.....i2f

Yes, for Heaven's sake do a test fit least you end up doing like a dumb friend of mine did and buy chain (or windlass) three times before it fit.

It was me.

[Craig Smith]

Is it stainless? G5 is an unusual grade for galvanized. G5 is the common high tensile stainless grade and either way yes is stronger than G4 or American "high test". Are you sure it's 5/16" and not metric? Very close to 8 mm but not exactly 8 mm might work okay with any given 5/16 gypsy, or might not. You will need to know the exact pitch measurements and compare with the windlass gypsy options. Talk to the manufacturer not local retailers, if for example you need to get hold of a metric gypsy.

[interlude44]

Thanks for the advice. No, I am not sure that it is 5/16. All I am going on is the description of the anchor chain when I bought the boat, which stipulated it as - 75M/246 ft HT anchor chain, 5/16". A metric gypsy may be the answer. The current Simpson Lawrence Gypsy is stamped and numbered 172.