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Help me identfy my mystery nut

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Found imbeddedย  in a gravel track

Initially thought it was a truck wheelnut or a railway relatedย  fastener (track is access toย  train tracks )

Hex head but with conical bottom face

Thread form has baffled me though - looks like a bottle type rounded form not normal Vee profile

I know the small nut picturedย  is a sweet chestnut !

Mystery nut


 
Posted : 14/10/2024 6:34 pm
relapsed_mandalorian, thols2, thols2 and 1 people reacted
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P


 
Posted : 14/10/2024 6:53 pm
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I appear unable to attach a picture of this nut .. the mystery deepens sorry

Hope this works

[url= https://i.postimg.cc/jC3SYgKr/IMG-4390.jp g" target="_blank">https://i.postimg.cc/jC3SYgKr/IMG-4390.jp g"/> [/img][/url]


 
Posted : 14/10/2024 7:05 pm
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Thread for rebar?


 
Posted : 14/10/2024 7:14 pm
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Free shaunthesheeps nut photos.


 
Posted : 14/10/2024 7:16 pm
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Security shear nut, post-shear?

Ah, photo has now appeared. Nut that.


 
Posted : 14/10/2024 7:16 pm
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mrhoppyFull Member
Free shaunthesheeps nut photos.

I would not google that...


 
Posted : 14/10/2024 7:22 pm
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Scammel wheel nut?

Don't Google that either


 
Posted : 14/10/2024 7:24 pm
ads678, ElShalimo, ads678 and 1 people reacted
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I think some railway ties clear thingies use a knuckle thread.

The cone allows a bit of racking. The knuckle thread means they don't have to be fastedious with dirt.


 
Posted : 14/10/2024 7:24 pm
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Yes knuckle thread form looks like a visual fit , found some mentions of applications on railway carriages.ย  I thought it might be a railway related item because of where it was found.ย  Area has had lots of work done to reinforce the cuttings / banks - perhaps it is aย  civil engineering widget ?


 
Posted : 14/10/2024 7:41 pm
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I reckon that's a drive bush not a nut. For running a lead screw like you get on a lathe or big valve. Probably very worn which is why discarded.


 
Posted : 14/10/2024 7:42 pm
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Not exactly the same style but I think the same applicationย  - nut for rock anchors used in civil engineering projectsย  https://i.postimg.cc/hXtGkkQg/rock-anchor-nut.pn g" target="_blank">https://i.postimg.cc/hXtGkkQg/rock-anchor-nut.pn g"/> [/img][/url]"> https://postimg.cc/hXtGkkQg ][img] https://i.postimg.cc/hXtGkkQg/rock-anchor-nut.pn g" target="_blank">https://postimg.cc/hXtGkkQg ][img] https://i.postimg.cc/hXtGkkQg/rock-anchor-nut.pn g"/> [/img][/url]

Thanks for all your help Forum Folk


 
Posted : 14/10/2024 8:16 pm
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Ah yeah that was going to be my next suggestion based on slope stabilising.

Thread would makes sense aswell.


 
Posted : 14/10/2024 8:21 pm