CTS 500K  full size, short/split, knurled shaft, audio taper potentiometer.   Aluminum bushing and shaft.  15% Tolerance. Each pot comes with nut, lock & dress washer.  These are short-shaft pots (threaded bushing is 3/8" tall X 3/8" diameter), sized for USA-made guitars.  The potentiometers are manufactured for TAOT by CTS.  These pots are generally equivalent to the 500K pots distributed by Allparts as part # # EP 086   Note:  This part is sized for USA-made guitars.  If you purchase this for an import guitar, the openings will need to be enlarged to 3/8" diameter.  Do not use short shaft pots if your guitar has a control plate.  As a general rule Les Paul's made before 1977 will use short-shaft pots, but please double check before you order