Patent ID: 8088019

Claim:
A golf club head comprising: a. an upper crown, a neck, a sole, a front striking face, a heel, a toe, a skirt section between the crown and the sole, an internal cavity, and an opening in the neck communicating with the internal cavity; b. a cup piece positioned in the opening and comprising: i. an top threaded section for receiving a clamping nut; ii. a central spherical section having a spherical surface; and iii. a bottom rotation prevention section comprising at least two interior opposing flat sides; c. a hosel for insertion into the cup piece and comprising: i. an top cylindrical section for receiving a golf shaft; ii. a upper spherical section having a spherical surface for engaging the spherical surface of the central spherical section of the cup piece; and iii. an intermediate rotation preventing section having at least two exterior flat sides for engaging the at least two interior opposing flat sides of the cup piece; and iv. a bottom connector section with a connector having connector threads; d. a hosel positioning mechanism comprising: i. a tube extending through the skirt into the internal cavity and having an internal threaded section; ii. an adjustment nut having internal threads and having external threads for engaging the internal threaded section of the tube; and iii. a screw that engages the threaded connector of the bottom section of the hosel and engages the internal threads of the adjustment nut; and e. a mechanical fastener for locking the hosel to the cup piece.