Patent ID: 8177660

Claim:
A golf club, comprising: a golf club head having an interior chamber configured to receive an insertable shaft adapter, the interior chamber comprising: a receiving mechanism proximate to an exterior portion of the golf club head configured to releasably receive and secure a shaft retainer, wherein the receiving mechanism of the interior chamber of the club head comprises threaded securing structures configured to threadingly engage threaded structures on the outer perimeter of the shaft retainer; and a first rotation inhibiting structure; a shaft adapter comprising an axial direction change region, the shaft adapter further having an upper end and a lower end, wherein the lower end comprises a second rotation inhibiting structure configured to engage or mate with at least a portion of the first rotation inhibiting structure of the golf club head to prevent rotation of the shaft adapter in relation to the club head, wherein the shaft adapter fits within the interior chamber of the golf club head at a plurality of different configurations, wherein at least one configuration provides different club characteristics than another configuration; and wherein the shaft retainer is configured to be releasably secured by the receiving mechanism of the club head.