Lightning arrester component e.g. connecting clamp, has bore hole for pushing fastening screw with thread, retaining nut screwed on thread and fitted to component in screwed condition, and edge of bore hole comprising flange

摘要

The component has a bore hole (4) for pushing a fastening screw with a thread, where a retaining nut is screwed on the thread and fitted to the component in a screwed condition. A screw head of the fastening screw fits at the component. The edge of the bore hole has a flange (5). External diameter of the flange is same or smaller than the diameter of the screw head and/or the nut. The flange is provided with a rib (6).