Read the Articles I put up PLEASE.
250.8
CONNECTION OF GROUNDING AND BONDING EQUIPMENT
Grounding conductors and bonding jumpers shall be connected by (now this is it guys )
exothermic welding (well we:re not going to cadweld to the box) listed pressure connectors(the ones we all hate and think are useless) Now this is it !!!!! L I S T ED Clamps(get that LISTED) or other (here it is again ( L I S T E D) clamps or other L I S T E D means. Notice LISTED listed listed, Are your clamp screws listed ummmmmmmm I THINK NOT! now theres the code section how can you read it any other way. ( by the way I have never said Green screw look back at all my posts) By the way I called ul talked to head electical guy there , He well be bringing this up in a Future issue of electrical contract Maz. Geee I wonder what it well say ??/