Abstract: A screw-on electrical connector is made by a method in which the manufacturing procedure or process is greatly simplified and the resultant connector is of a high quality. method or procedure involves bringing an insulating shell into contact with a coil which is positioned in the bore of the shell and is secured therein in one step by supplying sufficient heat to the bore of the shell to soften it and cause it to flow into an adherent relationship with the outer portions of the coil. At the same time, sufficient axial pressure is applied between the coil and the shell to cause the two to firmly interlock.

Abstract: A method and machine for making screw-on connectors is disclosed. The connectors have an insulating shell with a bore open at one end and a wire coil in the bore of the shell. The method includes the steps of heating the coils sufficiently so that it in turn heats the bore of the shell in contact with it to soften the interior of the bore, and applying a compressive axial thrust between the shell and coil while the interior of the bore is still soft to force them together to a predetermined axial relation. A suitable machine for accomplishing the steps of this method is also disclosed.