Originally Posted by tbuggle
i don't know what the stuff is like (haven't had my clamps apart yet, i'll wait til i need to) that you speak of, but seems it would be a common adjustable set screw glue/goop. maybe i'll do a search!!
edit: i reckon it's not really a set screw, but an adjustment screw.
That's exactly what it is. I just can't remember what the stuff is called.