Dajia Cycleworks Downtube Cable Stops w/ Adjustor
These inexpensive alloy downtube cable stops have curved backs and fit standard shifter bosses. The adjustors have indents, so they won't loosen accidentally. The finish is silver anodized and usually a little rough looking with some minor pitting.
Price is per pair. Does not include screws.
I'm waiting for new shifters to arrive. I can't install cable stops instead of downtube shifters if those are still in use :)