HD-OEM: 24017-80Part Number: 12-0610 UOM: 1 - EA Summary:Jim sprocket shaft nut is 1-1/8" -16 for taper end shaft.Fitment: FL 1972-1984 FX 1972-1984 FLT 1979-1986 FXR 1982-1986 FXST 1984-1986 FLST 1986-1986 Country of Origin: USA