coupling nuts

Commonly used in electrical assemblies, and available from the likes of CPC/Farnell/RS, etc.

You read replies here.

==================== If you only want a few you could buy worktop clamps and use the nuts which are for some reason the nuts you're looking for.

See here:

Cic.

thread type and length. If you mean 1/4 inch AF (approx) by 20mm long they'd be M4 x 20, and the RS number is 222-496. They're chrome plated brass and cost 0.17 each plus VAT - but come in packs of 50 minimum.

Hi, are the worktop clamps the same size of thread?

Thanks

Ok Cheers, they are to fit a camera tripod screw thread for a project that I'm doing at uni, I've been told that 1/4 is the correct thread?

On 1 Jul 2006 06:38:55 -0700, " snipped-for-privacy@googlemail.com" had this to say:

Yes - correctly 1/4" BS Whitworth, but 1/4" UNC will just about fit.

Ah - right. Yes, that's 1/4 BSW and much bigger than the spacers I've mentioned. It's also the tread size used for microphone stands. Have a look at Canford Audio

Does RS not have the ones I want then?

If so which are the rs codes for the 1/4 BSW

thanks

Simon

==================== Those I have are M6 thread and the nut is about 17mm long.

Cic.

I've had a good look on that Canford site, and they cost =A313 each! for what want.

I can't find the right ones on the rs site, can anyone point me to them please

Thanks

I was wondering if they were called something else and found this site which I found interesting considering the depth of my engineering ignorance:

We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember " snipped-for-privacy@googlemail.com" saying something like:

Make your own. Cut a piece of hex bar, drill and tap it the right thread. If you've got a few to do, it's cost effective compared to that price and is more in keeping with the spirit of this ng.

Too much trouble that one mate, i'd rather just buy them ready done, i'd order the ones from RS, but I dont know which ones they are.

As I said before, the largest they do in this style has an M4 thread, and the outside size of the spacer (across flats) is approx 1/4" so it couldn't even be modified by re-tapping to suit.

This sort of thing for camera or microphone use tends to be limited production (as you've found) so expensive. But you might find a mass produced cheaper item in a disco equipment etc store.

RS 276-522 is M6, described as "studding connectors". I think I found them in the section that deals with suspending things from factory roof girders.

Ah - right. ;-) M6x1 does sort of 'go in' a few threads of a 1/4 Whit but not really to be recommended, given the cost of some cameras.