keeping electrical conductivity on screw thread

Jun 05, 2009 26 Replies

Probably hi-jacked some other thread in one of the cross-posted ng's.

Screw the cap over a strip of paper along one side.

Or insert a piece of dowel, then crush the threads a little with a hammer.

Depends how sturdy it is. If it's an AA-battery sized torch then probably just a quick 'bite' or a gentle tap with a block of wood would do the job. If it's more solid then a (padded) hammer could do it.

The intention is just to make it very slightly out of round, so it makes a good solid connection and can't rattle loose.

PCPaul wrote in news:gDPWl.39091$ snipped-for-privacy@text.news.virginmedia.com:

just ding the threads slightly and it will be tight and electrically connected. It's SO simple. just a tap with a hammer.

Wrap a single strand of very thin wire around the threads.

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