This In-Line set of six Kluson tuning machines was formerly used on all vintage 6 in-line Fender Strat, Fender Tele, and many other models of Fender instruments. This Kluson tuning machine is also a direct replacement for all current reissue "50s and "60s Fender production and Fender signature series that use a split post (safety post) vintage-style tuning machine. These are six individual tuners (that are not on a plate). All hardware including bushings and mounting screws are included in the set.Please note: If you are retro-fitting a vintage instrument that has been modified or putting this vintage style guitar tuners on a modern instrument, you may also need to purchase "adapter bushings" (sold separately) to convert a larger size peg hole to vintage size to allow for proper fit and function.These Kluson tuners are historically used on the following guitars:1956 - 1964 Fender Telecaster1956 - 1964 Fender Stratocaster1958 - 1964 Fender Jazzmaster1959 - 1964 Fender Custom Telecaster1962 - 1964 Fender Fender Bass IV (6 string bass)1962 - 1964 Fender Jaguar1963 - 1964 Fender King1963 - 1964 Fender Concert