Source for Metric turnbuckle

JBP-PA

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Apr 29, 2022
462
Jeanneau Tonic 23 Erie, PA
I need a couple metric M10 turnbuckles for my Jeanneau Tonic. All I can find are imperial threads. I only need the body and lower toggle and I'd rather not replace the shrouds so I need M10 threads (lower RH, shroud LH).

20241031_104149.jpg
 
Jan 11, 2014
12,099
Sabre 362 113 Fair Haven, NY
Are you sure it is metric and not a fine thread? ¼” - 28 thread is very close to M10.
 
Jan 5, 2017
2,315
Beneteau First 38 Lyall Harbour Saturna Island
Anything made outside of U.S.A. should be metric. Have you tried just using a tap and die to clean the threads?
 
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JBP-PA

.
Apr 29, 2022
462
Jeanneau Tonic 23 Erie, PA
Anything made outside of U.S.A. should be metric. Have you tried just using a tap and die to clean the threads?
Any suggestions as to who to look at? I've found some EU sites, but search engines are tuned to return mostly US results. I know there is a way to tell Google i only want Canada or EU, but I'd have to look it up.

If you look closely at the first picture, you can see there aren't any threads left to clean up.
 
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JBP-PA

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Apr 29, 2022
462
Jeanneau Tonic 23 Erie, PA
I asked because I've gone the M10/1/4"-28 hole a couple of time.

Have you tried RigRite?
I think you'll find that an M6 is approximately 1/4. A M10 is just over 3/8.

I'll email RigRite, I forgot about them.
Thanks.
 

JBP-PA

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Apr 29, 2022
462
Jeanneau Tonic 23 Erie, PA
Is the one from e-rigging above inappropriate?
It might fit. It is a little short and doesn't have toggle ends which means I have to rejigger the toggles. I'm a little concerned about the quality too, $15 seems like it might be too cheap, imperial sized ones run $30-$80 for a 3/8.
 
Jan 11, 2014
12,099
Sabre 362 113 Fair Haven, NY
It might fit. It is a little short and doesn't have toggle ends which means I have to rejigger the toggles. I'm a little concerned about the quality too, $15 seems like it might be too cheap, imperial sized ones run $30-$80 for a 3/8.
Better quality marine turnbuckles have a chrome plated bronze barrel and SS studs. This prevents galling between the SS stud and the barrel.
 
Jun 11, 2004
1,694
Oday 31 Redondo Beach
Better quality marine turnbuckles have a chrome plated bronze barrel and SS studs. This prevents galling between the SS stud and the barrel.
It might fit. It is a little short and doesn't have toggle ends which means I have to rejigger the toggles. I'm a little concerned about the quality too, $15 seems like it might be too cheap, imperial sized ones run $30-$80 for a 3/8.
Of course. I see that now. It doesn't toggle like you need. Aside fromj what dlochner points out.

Oh well.
 

JBP-PA

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Apr 29, 2022
462
Jeanneau Tonic 23 Erie, PA
Another option is to replace the swage ends with sta-lok long stud fittings and go imperial. Saves replacing the wires, but an extra $100 or so.
 
Jan 11, 2014
12,099
Sabre 362 113 Fair Haven, NY
Or just replace the wires and the toggles with swaged fittings.

Which boat is this for?
 

dLj

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Mar 23, 2017
3,718
Belliure 41 Back in the Chesapeake
I asked because I've gone the M10/1/4"-28 hole a couple of time.

Have you tried RigRite?
I'm assuming that was a typo and you meant 3/8-28. 1/4" would just slide through a 10mm female ...

As to the comment on running a tap and die through- I would be hesitant to do that on a structurally loaded fastener. OK using a M10 on a M10 but not to change sizes or thread types. Not sure if that was the intention ...

dj
 
Jan 11, 2014
12,099
Sabre 362 113 Fair Haven, NY
I'm assuming that was a typo and you meant 3/8-28. 1/4" would just slide through a 10mm female ...
Mea Culpa, I was focused on the thread, fine vs coarse and really didn't think about size. The last time I dealt with this was with a ¼"-28. The point being, some some metric and some SAE threads can almost fit each other and it is easy to make a mistake. One mechanic made a $7K mistake when he mounted the transmission on my engine using SAE bolts when they were metric threaded. Easy mistake to make, frustrating when you forget that SAE have fine and coarse threading.

In my defense, I was somewhat preoccupied wishing the wind to shift 20° to the right so I could sail and not motor 37 miles.