Fastening device for swivel connections for use in crane construction, comprises screw connection, which has insert with receptacle hole partially pushing through by fastening screw and counter thread screwed with fastening screw

摘要

The fastening device comprises a screw connection pushing through a base portion into a through-hole. The screw connection comprises an insert (7) with a receptacle hole (9) partially pushing through by a fastening screw and a counter thread (11) that is screwed with the fastening screw. The insert is placed in the through-hole and is adapted to the inner diameter of the through-hole with its outer diameter. A nut is provided as a counter threading carrier that is screwed on the fastening screw in mounting state.