not really. I think everyone would know what you're talking about, though! A hex bit is the tool used to loosen/tighten a socket head (allen??) fastener. A hex head bolt has an externally hexagonal head.

I guess it doesn't really MATTER what you call them, as long as we can all agree to call them the same thing. Shall we take a poll????

Cheers!

Jay.

__________________
On the road, currently:
'83 300D (German spec.) 168k mi. - - Wolfgang (tucked snugly away for the winter!)
'87 300D 375k mi. - finally went over to "The Dark Side"
'87 300TD 225k mi.
Cannondale 66cm CAAD5 w/Campy/Jamis Aurora
Hujsak Custom Fixie/Landshark Track Shark Custom/Ahearne Custom 29'er