Screw thread insert element for use in connecting part for screw in electrical connection field, has aperture whose inner wall is provided with screw thread for inner wall of another aperture, where apertures are covered by material

摘要

The element (10) has an aperture (3) whose inner wall is provided with a screw thread (6) for an inner wall of another aperture (4), where the screw thread is partially provided in an inner opening. The apertures are covered by a material e.g. insulating material such as plastic, which is sliceable by a screw. Diameter of the latter aperture is larger than or equal to an outer diameter of the screw thread. Height of the latter aperture amounts to 2-3 times of a diameter of the screw. A difference between the diameters of the apertures is equal to wall thickness of the latter aperture. An independent claim is also included for a connecting part.