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.

Abstract: A holding device for use in assembling mechanical members comprises a joint head having a spherical head and a fastener formed continuous with the spherical head; and a clip having a joint cavity member formed of an elastic material, the joint cavity member having a groove portion having a cross-section corresponding in shape to an external shape of the spherical head, and receiving lip portions formed continuous with the groove portion, the receiving lip portions spreading outward, and a fastener formed continuous with the joint cavity member. The spherical head of the joint can be fitted in the groove portion to be held therein, whereby a member which is fastened to the fastener of the joint head and a member which is fastened to the fastener of the clip can be preliminarily held to each other. The invention provides the preliminarily-holding device for use in assembling mechanical members, which is capable of causing a part (e.g.