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Tue 17 Sep 2024 13:10

Whitworth and others. - Nuts and bolts - Orb>>.

www.theguardian.com/artanddesign/2024/sep/16/solve...s

I know not strictly motoring but what if we had mismatched nut and bolts.

The forerunner to mass production?

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Tue 17 Sep 2024 13:47

Whitworth and others. - Nuts and bolts - Big John

Re Whitworth - I used a lot of these in the 70's as my Dad worked in the nut and bolt industry until the factory he was at in the midlands closed down in the late 60's and he ended up with many boxes of them. Apologies to the current owner of my kit car built circa 1990 that had a few fitted along side metric nuts and bolts.

I still have sockets and spanners that are a mixture of imperial, metric and Whitworth.

I still have the factory clock that my Dad ended up with - fortunately now working well with preserved "patina". Despite my computer & electronic background I seem to have taken to fixing up old clocks in my retirement.

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Tue 17 Sep 2024 17:38

Whitworth and others. - Nuts and bolts - bathtub tom

When I was working on (really) old vehicles, it was a problem. Whitworth, metric (some were foreign), AF, BA and I'm sure others.

Don't get me started Philips, Pozi and JIS!

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Tue 17 Sep 2024 18:10

Whitworth and others. - Nuts and bolts - elekie&a/c doctor

Manufacturers are out to get us . Citroen /peugeot 5 sided pentagon fasteners for their brake systems. Why is that necessary??

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Tue 17 Sep 2024 20:30

Whitworth and others. - Nuts and bolts - Brit_in_Germany

This is the article from The International Journal for the History of Engineering & Technology if anyone is interested.

www.tandfonline.com/doi/full/10.1080/17581206.2024...4

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Thu 19 Sep 2024 23:56

Whitworth and others. - Nuts and bolts - focussed

An interesting article about the development of nut and bolt systems on cars from way back to the present day. www.wheels-alive.co.uk/need-to-know-series-no-4-th.../

For reference the thread angles (the included angle in the thread's groove) are:-

BSW, BSF and also BSP plumbing thread and the little known brass thread and any thread derived from the whitworth system is 55 degrees.

For the Unified USA system UNC + UNF and metric thread etc is 60 degrees

And for the hopefully now defunct BA thread it's 47.5 degrees.

If anybody needs taps or dies for obscure threads of any type, this small company will have it.

(Eg 11/16" x 16 TPI land rover track rod thread)

www.tracytools.com

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