The bolt is made from a section of Ø33, Ø39, or Ø48 mm in diameter and dedicated thickness. The cross-section of the bolt is an incomplete outline of the pipe that closes during the bolting operation.
The upper part of the anchor is formed into a cone. The lower part has a retaining ring for mounting the washer. When set in the hole, the bolt is given the required load capacity due to elastic rod structure.