Patent ID: 7350755

Claim:
A device for attachment of watercraft accessories to a watercraft tower structure comprising: a clamp bracket attachable to a clamp base; an accessory attachment having a rotational shaft disposed for insertion in a rotational aperture of said clamp base wherein said accessory attachment having a threaded bore centrally disposed therein for threadable insertion of said rotational shaft; said rotational shaft extending outwardly from a rotational side of said accessory attachment and having a shaft element at a distal end; said clamp base having an attachment recess therein circumferentially disposed around said rotational aperture and a nut threadably engaged on said rotational shaft with a nut washer of low friction material composition disposed between said nut and said attachment recess; said accessory attachment having an annular groove in a rotational side thereof; said annular groove having a plurality of detents formed in a base thereof; said clamp base having a set screw aperture therein for threadable insertion of a set screw disposed for a spring ball tip of said set screw to be positioned in one of said plurality of detents; said annular groove having a limit recess formed in a portion thereof wherein said limit recess is approximately triangular in shape; said limit recess having a pin hole therein disposed in a proximal apex with a pin inserted in said pin hole and an arm rotatable disposed at a rotational end on said pin; and rotational motion of said arm about said pin is limited by a side of said limit recess and said arm disposed to limit motion of said set screw in said annular groove.