[COLOR="DarkRed"]A coupling nut ? They look like regular nuts except 4x the usual length, with 2 differend threaded inserta on each end. My hardware store has them to connect 2 different diameters for english measurements...but not metric...[/COLOR]

Nope, like a sleeve on one end that's threaded on the inside at 6mm to screw down on a 6mm tilter, with about a two or three inch rod on the other end that's threaded at 8mm on the outside to slide a tilter cup and felt onto and screw a 8mm wing nut onto (place cymbal in between).........

Probably not, someone needs to make some of those

That sounds suspiciously like the Gibraltar cymbal stacker. No?

Nope, not to mount a second cymbal

Here's something that might work. It's for RC.

...also...check out this site.

http://www.conexmetals.com/thread_converters_adapters_plugs/thread_converters_adapters_plugs/thread-converters-adapters-plugs.htm

Does so. Though I've only seen pictures...well...anyway. It's pretty cool. It should do what you need. Here's the url.

http://www.rcdude.com/servlet/the-976/Hyperion-Extra-Long-Prop/Detail

Where do you find this stuff, I'm gonna call them.

Thanks

Cool. Let us know how it goes. There's more than one on this forum that has gone down this 6mm cymbal stand thing. Good stuff Kevin.