Looking for a Nut

[jimreed2160]

I am trying to restore a BASA hammer but it is missing its jam nut. The size is 1 1/2" with 16 tpi. I have searched on line everywhere but have tapped out. Mr Google is not my friend here. Does anyone have a lead on such a unicorn of a nut?

 

[Craptain]

I am trying to restore a BASA hammer but it is missing its jam nut. The size is 1 1/2" with 16 tpi. I have searched on line everywhere but have tapped out. Mr Google is not my friend here. Does anyone have a lead on such a unicorn of a nut?

No. But maybe someone close has a lathe. Shouldn't be too hard to fabricate.

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[notlob]

I would contact these folks to see if they can fulfill your nut need:

http://www.garlandmfg.com/mallets/split.html

 

[DenisG]

Maybe a pipe union coupling nut?

 

[Zeke]

Lots of nuts here.

 

[jimreed2160]

Thanks for your suggestions. I am still working Mr Google. I have discovered that it is European (UN). It is the Unified Thread Extra Fine (16tpi) and may be 38mm instead of 1 1/2".

This seemed like an easy fix but a donor tool may be the only way out.

 

[PugetDude]

I remember reading somewhere that Cessna used a 1-1/2-16 nut on some of their wheel assemblies. Might be worth looking into or it might be just another rabbit hole. Good luck.

 

[6PTsocket]

I just pulled up a metric fine thread chart and it went from 36 to 39mm, no 38mm. The 16 tpi pitch would be close to 1.6 mm. There is a M39-1.5. Maybe my chart from Maryland metrics is incomplete.

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