US Patent 7931542 Golf club

The invention provides a golf club including a clubhead including a hosel portion having an internal screw portion and a first support surface; a shaft including a neck portion having an external screw portion which screws into the first screw portion and a second support surface opposed to the first support surface, and an adjuster element adapted to be interposed between the first support surface and the second support surface when the clubhead and the shaft are screwed together by the first screw portion and the second screw portion being screwed together, wherein a center axis of an insertion portion on the internal thread is formed is inclined at a predetermined angle with respect to a center axis of the shaft which results when the clubhead and the shaft are screwed together.