This invention applies to a bolt-on neck guitar or similar instrument or device. The mechanism of this invention, a multiple section hinge with one end flap attached to the neck and the other end flap attached to the body while the center section stays sandwiched between the neck and the body in normal use, allows the removal of the neck screws with the strings under tension by the hinge absorbing the horizontal stress produced by the tension of the strings. The neck is then rotated 180 degrees to rest on top of the body where it can be secured with a clamp or a strap for transportation or stowage. The neck holding screws can be replaced with a large single one, reducing the time required to loosen the neck, while still maintaining the possibility of using the normal four screws in addition to or in lieu of the single one if so desired, since the tone of the guitar is improved when the pressure of the neck-body junction is increased and distributed over a larger area. By folding the neck on top of the guitar, the bulk and the chances of damaging the instrument are greatly reduced, since the neck can be secured at both ends and the instrument can fit in boxes or pieces of luggage in which an ordinary guitar would not fit, in particular a carry-on size piece of luggage, which allows the traveler guitarist to have full control of the whereabouts of the instrument at all times.