If you have a problem with the jackcup that holds your output jack coming loose, this will solve that problem once and for all!
Retrofit jackcup for Telecaster®. Black finished brass construction. Compatible with standard Switchcraft 1/4″ input jack. Fits onto the standard 7/8″ diameter existing jackcup hole. Includes two mounting screws. The curved surface makes it easy to insert a jack and the diagonally-mounted screws provide resistance to loosening.