The Stovebolt Site Forums The Shop Area General Truck Talk Bolts, nuts washers

I also do what hippy describes, when I have a clutch head screw/bolt that is unusable and I cannot find a clutch-head replacement.

The clutch-head screw was originally marketed as being superior for centering a screw/bolt driver and for allowing the use of a straight-sided driver having better engagement with a straight-walled recess in the screw-head.