Dizzy screw

[Reckless Rat]

Don't ask me, I'm French. Je ne sais rien sur les filetages de vis et de boulons, même pas deux fois.

[David Stepney]

Don't ask me, I'm French. Je ne sais rien sur les filetages de vis et de boulons, même pas deux fois.

Une vis de reglage a un filetage sur toute de sa longuer, Un boulon a un filetage seulement a  l'extremite inferieure.

(PS. My keyboard doesn't do accents, a grave shortcoming of which I am acutely aware )

[Tony Press]

A set screw with a little bit of thin tube?

[Spex]

A complexely thread is used on the Cemetary Mixer for sale on Farcebook

[David Cochrane]

The stepped bolt on my car keeps unscrewing itself, but luckily the bottom of the distributor body stops it coming up so far that it falls out. If I try to tighten it up then the distributor adjustment locks up. Should there be a washer or spring under the head of the bolt?

[Chris Garner]

David,
I have both and it works for me.

[Howard Wright]

Hi David

I think there should be a spring under the head.

Cheers

Howard

[David Cochrane]

Thanks - I'll have another look at it tomorrow.