Abstract: A metal container with thread capable of preventing such a defect that the strength of a lower end of a mouth part and an upper end of a shoulder part of a container main body is non-resistant to a pressing force in radial and axial directions, and a part of the container may be collapsed or buckled during a capping operation where content is filled into the container and cap is fitted to the container automatically by a machine, characterized in that at least one or more inwardly curving smooth annular recessed parts (4) and at least one or more outwardly curving smooth annular projected parts (5) are formed in an area ranging from the lower end (2a) of the mouth part (2) of the container main body to around the upper end (3a) of a tapered shoulder part increasing gradually in radial direction.

Abstract: A metal container with thread capable of preventing such a defect that the strength of a lower end of a mouth part and an upper end of a shoulder part of a container main body is non-resistant to a pressing force in radial and axial directions, and a part of the container may be collapsed or buckled during a capping operation where content is filled into the container and cap is fitted to the container automatically by a machine, characterized in that at least one or more inwardly curving smooth annular recessed parts(4) and at least one or more outwardly curving smooth annular projected parts(5) are formed in an area ranging from the lower end (2a) of the mouth part(2) of the container main body to around the upper end(3a) of a tapered shoulder part increasing gradually in radial direction.

Abstract: A metal container with thread capable of preventing such a defect that the strength of a lower end of a mouth part and an upper end of a shoulder part of a container main body is non-resistant to a pressing force in radial and axial directions, and a part of the container may be collapsed or buckled during a capping operation where content is filled into the container and cap is fitted to the container automatically by a machine, characterized in that at least one or more inwardly curving smooth annular recessed parts (4) and at least one or more outwardly curving smooth annular projected parts (5) are formed in an area ranging from the lower end (2a) of the mouth part (2) of the container main body to around the upper end (3a) of a tapered shoulder part increasing gradually in radial direction.