Dowel extension for anchor, is extended and attached at front dowel end of anchor, where screw is screwed through anchor to dowel extension

摘要

The dowel extension (1) is extended and attached at a front dowel end of an anchor, where a screw is screwed through the anchor to the dowel extension. The dowel extension has a nominal diameter similar to the anchor, and is expandable by turning the screw. A large expansion element (2) is provided, which is expandable by turning the screw.