Top-quality potentiometers used on U.S. Fender instruments. 1 Meg A Taper potentiometer. 3/8'' potentiometer shaft. Split shaft design. Works with push-on style knobs (no set screw). Mounting nut and washer included. Used in American Vintage Jazzmaster (US) and Classic Player Series Jazzmaster (Mexico) models manufactured from 1998-2012.