A golf club includes: a shaft; a head; and a shaft case, a hosel column, wherein: the shaft case includes a convex axis member provided at a top end of the shaft case; the hosel column includes a plurality of concave threads that are provided on the lower side of a step face on an inner periphery of the hosel column; a flange member is provided at a back end of the shaft case, and a spacer is provided insertable and removable between the flange member and an upper end of the hosel column; a bolt holder is arranged to connect with the step face when the spacer is inserted between the flange member of the shaft case and the hosel column; and the bolt holder is arranged to connect with the upper ends of the concave threads when the spacer is removed.