stacking headers

Where can I buy the single row stacking headers for the arduino in bulk quantities. Also the dual-row headers as on the Mega? I am looking for stackable headers so I can attach one shield on top of another. I have spent a bit of time on Digikey and Mouser. Perhaps I do not know what to search for!

Any enlightenment will be appreciated.

Vic

Try:

DigiKey

Mouser

If you want a few hundred then Sparkfun. (Leave some for the rest of us!)

If you want 10’s of thousands, how about going straight to the manufacturer? - http://www.4uconnector.com