What's the correct name for it?

I'm searching for some M8 and M6 internally threaded bar for a little work project but can't seem to find any. (think M8/M6 nut but about 5cm deep)

What do I need to search for?

TIA

threaded bush

or

threaded insert

Something like this Linky

Check its the correct pitch though.

Cheers

Rich

Thanks chaps, that is just the sort of thing I'm looking for.

I can go hunting locally now for off the shelf.

Cheers

Some times called a studding extender or studding coupler you can find them on ebay.

I buy M10 stainless steel ones for use as exhaust flange nuts and manifold nuts as I reckon they protect the exposed threads on the stud and much deeper hex gives you abetter chance of getting them off next time.



[Edited on 10/3/10 by britishtrident]

i have some hex ones, what size do you want, and how many ?