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 Leblanc Opus rod screw threads
Author: clarnibass 
Date:   2015-07-08 17:10

Hi

Does anyone know what is the thread pitch of the rod screws on Leblanc Opus clarinets?

Thanks

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 Re: Leblanc Opus rod screw threads
Author: Chris P 
Date:   2015-07-08 17:53

No idea, but it's too small as I've had to replace the LH lever rod screws on Leblancs as the internal thread in the pillars had stripped from being over torqued. I tapped them out to M2x0.4 and fitted the appropriately threaded rod screws as a replacement.

Sorry, not helping much.

Former oboe finisher
Howarth of London
1998 - 2010

The opinions I express are my own.

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 Re: Leblanc Opus rod screw threads
Author: clarnibass 
Date:   2015-07-08 19:32

I'm asking for someone else in case someone here might know. It now seems to be 1.7x0.45mm which is really weird but I've seen some weird threads. I have no idea why companies used these.

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 Re: Leblanc Opus rod screw threads
Author: donald 
Date:   2015-07-09 11:57





Post Edited (2015-07-10 02:50)

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 Re: Leblanc Opus rod screw threads
Author: Steven Ocone 
Date:   2015-07-10 17:10

A .45 mm thread would be 56TPI, a standard thread thread in the USA.

Steve Ocone


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 Re: Leblanc Opus rod screw threads
Author: clarnibass 
Date:   2015-07-10 17:42

Yes, 56TPI is very close to 0.45mm are very close. Someone on another forum confirmed that the Leblanc Opus has a very unusual thread of 0.45mm pitch with about 1.7mm diameter. Smallest standard diameter for 0.45mm is 2.2mm and for 56TPI it's about the same (2.18mm).

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