Patent ID: 8636606

Claim:
A golf club comprising: a hosel of a head to which a leading end of a shaft is attached; a weight material for adjusting weight; and a communication opening which communicates the lower end portion of the hosel hole with an inside of the head, wherein the weight material is detachably screwed into the communication opening, wherein: the leading end of the shaft is inserted into and bonded to a shaft inserting hole of a substantially cylindrical shaft case including the shaft inserting hole; the shaft case is inserted into the hosel hole; an axial center of the shaft inserting hole is obliquely directed with respect to an axial center of the hosel hole; the shaft case is fixed to the hosel with a ring-shaped screw member which fits onto the shaft case and is detachably screwed into the hosel on the upper end side; the screw member is arranged in an outer circumference of the shaft case in the non-contact state with respect to the shaft; and at least a part of an inner circumferential surface of the hosel hole and at least a part of the outer circumferential surface of the shaft case respectively have a sectional shape in the direction perpendicular to the axial center line, which is a multiangular shape with 3 or more sides.