Patent ID: 8403770

Claim:
An adjustable golf club head comprising: a face; a sole; a crown; an adjustable hosel assembly comprising a shaft sleeve and a hosel; a fastener comprising a fastener head and a threaded body; and an intermediate piece, wherein the hosel comprises a hosel bore extending from the sole to the crown, at least part of the hosel bore having a diameter sized to receive at least a part of the shaft sleeve, wherein the hosel bore comprises a flange having a spherical lower surface, wherein the intermediate piece is disposed between the fastener head and the spherical lower surface of the flange, wherein the intermediate piece comprises a spherical upper surface that mates with the spherical lower surface of the flange, wherein a radius of the spherical lower surface is equivalent to a distance between a rotation point of the shaft sleeve and a point at which the intermediate piece makes contact with the flange, wherein the threaded body of the fastener engages the shaft sleeve to connect the shaft sleeve to the head, and wherein the adjustable hosel assembly provides a plurality of angular adjustments.