A hinge , particularly for doors of any isothermal containers , comprising a first hinge element and a second hinge element , which are suitable to be integral with the structure of said isothermal container and said door , respectively, or vice versa, one of said two elements being rotatable and axially sliding with respect to the other , and wherein: - said first hinge element and said second hinge element comprise two corresponding facing edges with respective cam-shaped profiles cooperating with each other to keep said door in closed condition and automatically bringing it into such a condition due to a spring of the hinge acting on said first or second element and which can be urged by compression by the opening movement of the door , - the cam-shaped profile of said first element comprises two first stretches inclined in opposite direction, which join at a first lower apex , - the cam-shaped profile of said second element comprises two second stretches inclined in opposite direction, which join at a second lower apex , said hinge being characterized in that : - said second hinge element has, on the connection stretch of the upper ends of said second inclined stretches , in diametrically facing position with respect to said second lower apex , a single cavity which can be engaged by the first lower apex of said cam-shaped profile of said first element to bring/keep said door in open configuration, - said cavity has a substantially horizontal central bottom interposed between two oblique or curved stretches, - the middle of said cavity is diametrically opposite to the middle of said second lower apex of the cam-shaped profile of said second element , - the bottom of said cavity has an annular extension which is greater than the contact surface defined on the tip of the first lower apex of the cam-shaped profile of said first element . - said first hinge element and said second hinge element comprise two corresponding facing edges with respective cam-shaped profiles cooperating with each other to keep said door in closed condition and automatically bringing it into such a condition due to a spring of the hinge acting on said first or second element and which can be urged by compression by the opening movement of the door , - the cam-shaped profile of said first element comprises two first stretches inclined in opposite direction, which join at a first lower apex , - the cam-shaped profile of said second element comprises two second stretches inclined in opposite direction, which join at a second lower apex , - said second hinge element has, on the connection stretch of the upper ends of said second inclined stretches , in diametrically facing position with respect to said second lower apex , a single cavity which can be engaged by the first lower apex of said cam-shaped profile of said first element to bring/keep said door in open configuration, - said cavity has a substantially horizontal central bottom interposed between two oblique or curved stretches, - the middle of said cavity is diametrically opposite to the middle of said second lower apex of the cam-shaped profile of said second element , - the bottom of said cavity has an annular extension which is greater than the contact surface defined on the tip of the first lower apex of the cam-shaped profile of said first element . <EOS>