Rabbitgun got it right.
250.148 (C)
Alan--
For those that have the IAEI Analysis of Changes 2005 NEC page 82 has a related item about 250.8 and using a sheet metal screw to attach a lug to a panel = violation

[This message has been edited by Alan Nadon (edited 08-03-2006).]

Alan--
If it was easy, anyone could do it.