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Old 10th January 2021, 12:19   #1
roverbarmy
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Default My Brain Hurts!

It's getting harder................... no not that! To identify screw and bolt heads:-


https://en.wikipedia.org/wiki/List_o...ives#Polydrive





They don't want you to DIY!
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Old 10th January 2021, 12:44   #2
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There are a few there I've never heard of nor come across; some understandably discourage DIY...
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Old 10th January 2021, 13:18   #3
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A few more here to add to the list



Cliff
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Old 10th January 2021, 13:22   #4
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Well I don’t care. I’ve got my own bolt hole. So there.
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Old 10th January 2021, 13:46   #5
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A few more here to add to the list



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Old 10th January 2021, 15:34   #6
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Puts me in mind of when I had a Norton Commando. I think they used what ever nut and bolt was in the bucket behind them on the production line. AF, Whitworth, you name it, every conceivable British thread, nut, bolt type. Only thing you wouldn't find was metric! More than once I'd go to start a job then grind to a halt, always with the same question in my mind . . . . WTF is supposed to fit that
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Old 10th January 2021, 15:44   #7
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Well I don’t care. I’ve got my own bolt hole. So there.
I've got a clever dog---------------------------------I shouted at him and he made a bolt for the door.---
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Old 10th January 2021, 21:13   #8
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there is also a list of nuts on wiki:


https://en.wikipedia.org/wiki/Nut_(hardware)


interestingly, a STOVER nut isn't listed - i think they're used on the bottom front wishbone pinch bolt.

Last edited by hinged_bap; 10th January 2021 at 21:16..
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Old 10th January 2021, 23:20   #9
hogweed
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Quote:
Originally Posted by stevestrat View Post
Puts me in mind of when I had a Norton Commando. I think they used what ever nut and bolt was in the bucket behind them on the production line. AF, Whitworth, you name it, every conceivable British thread, nut, bolt type. Only thing you wouldn't find was metric! More than once I'd go to start a job then grind to a halt, always with the same question in my mind . . . . WTF is supposed to fit that

I hear you! Same on my Trident (1972). Though my previous bikes ('68 Bonnie backwards) were all Whitworth as far as I can remember...






My 1996 BMW M3 - though all Metric - specialised in using bolts and Allen screws of odd, intermediate sizes that didn't seem to come with your average socket or key set
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Old 10th January 2021, 23:45   #10
Mike Noc
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Quote:
Originally Posted by stevestrat View Post
Puts me in mind of when I had a Norton Commando. I think they used what ever nut and bolt was in the bucket behind them on the production line. AF, Whitworth, you name it, every conceivable British thread, nut, bolt type. Only thing you wouldn't find was metric! More than once I'd go to start a job then grind to a halt, always with the same question in my mind . . . . WTF is supposed to fit that

Still got mine. Thing is with the Commando it was far more ancient than it looked. You could trace the engine back to the 1940s and the gearbox twenty odd years earlier, and the threads they used were common place then.
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