A golf club includes a head, a retaining ring, a tightening ring, an adjusting sleeve, a hosel, a fixing sleeve, a coupler, and a shaft. A pin is threadedly engaged with a transverse screw hole of the neck and a transverse screw hole of the hosel and extended into a transverse hole of the coupler, such that the shaft is pivotable about the pin to allow adjustment in the tilt angle between the shaft and the head. The golf club provides a tilt adjustable mechanism with a strong structure while providing reliable tilt adjustment.
