Do you mean like this:
https://tinyurl.com/yyboomo7
it may help him find one if he posted it in the parts "wanted" instead of "for sale" section also....
http://www.zggtr.org/index.php?board=17.0but no Mike, not what he needs....
He has a C10, he posted a couple posts about it being "stuck"...:
http://www.zggtr.org/index.php?topic=23993.msg299757#msg299757Don't have a clue why a purchase is needed till he looks
16021-1101 SCREW-THROTTLE STOP
it's only $90.18 from Ron ayers... in stock.
https://www.ronayers.com/oemparts/partsearch/kawasaki?partsearch=16021-1101so far he never mentioned it needed to be replaced, and until he actually pulls the carbs off, and squirts some penetrant on the threads..and breaks the threads free of the carb body, he really is "looking" for an answer to a problem that costs nothing to remedy (except the time)