KERNUMFASSUNGSSCHRAUBE, ANORDNUNG UND VERFAHREN ZUM GESICHERTEN EINBAU UND/ODER AUSTAUSCH VON KERNUMFASSUNGSSCHRAUBEN

摘要

The screw has a stem with an outer thread and a screw head (24) with a profile, where the screw head has a proportionately rotating projection (28). A groove-like free area (32) is formed between the projection and the screw head for engaging an appropriate tool for torque-controlled installation of the screw. The projection is designed as screw head collar in the form of ring or collar and has a material thickness of 0.510 millimeter. Independent claims are also included for the following: (1) an arrangement for the secured installation and/or exchange of core enclosure screws or the assembly of core enclosure sheet metals (2) a method for the installation and/or exchange of core enclosure screw to secured attachment of core enclosure sheet metals.