Sold individually, this solid brass, dome top fine tuner knob with 6-32 (course) threading will fit all Kahler cam based tremolos (22xx, 23xx, 4200, 4300, 7200, 7300) and the Gibson Super-Tune tremolo. Can also be used on Kahler 2330 FLYER, 3330/7330 fixed bridges if you prefer the look.
This fine tuner looks just like the 8385 fine tuner but that has a 6-40 (fine) threading and is for 2500/2520 "Traditional" fulcrum tremolos, please check to make sure you are ordering the correct fine tuner.
Note that the raw brass variation is not associated with any Kahler bridge. They are listed in case you like the look. They are raw brass, no clear coat, and have some patina.