Abstract: A fastening device for fastening an earthing contact to a metallic protective tube. The fastening device includes an annular guide eyelet having an end face, a half-shell-shaped fixed clamping jaw which is integrally molded on the end face, and a loose clamping jaw configured to be clamped to the fixed clamping jaw. In an assembled state, the half-shell-shaped fixed clamping jaw and the loose clamping jaw are configured to clamp the metallic protective tube. The fastening device further includes at least one of the half-shell-shaped fixed clamping jaw and the loose clamping jaw comprising a receptacle-forming clamping jaw having an inner surface that forms a receptacle configured to receive the earthing contact.

Abstract: A fastening device for fastening an earthing contact to a metallic protective tube. The fastening device includes an annular guide eyelet having an end face, a half-shell-shaped fixed clamping jaw which is integrally moulded on the end face, and a loose clamping jaw configured to be clamped to the fixed clamping jaw. In an assembled state, the half-shell-shaped fixed clamping jaw and the loose clamping jaw are configured to clamp the metallic protective tube. The fastening device further includes at least one of the half-shell-shaped fixed clamping jaw and the loose clamping jaw comprising a receptacle-forming clamping jaw having an inner surface that forms a receptacle configured to receive the earthing contact.

Abstract: In order to reliably lock an electric plug and socket assembly (1) including an outer part (2) and inner part (3) which can be coupled to the outer part, the inner part is provided with a recess (17,17′) into which, when the two parts are coupled, a snap-on hook means (14,14′) is engaged and maintained so as to act as a spring. When the plug and socket assembly (1) is in a locked position, the snap-on hook means (14) or each snap-on hook means is locked against radial excursion since it rests on a bushing (7) which is axially displaceable on the outer part (2). In the locked position, the backward pulled bush (7) releases the snap-on hook means (14,14′) thereby allowing for disengagement of the outer and inner parts (2,3).