Sealing cover for a fastening device

A fastening system comprising:

• a filling mass (30);
• an internal space;
• and
• a fastening device (26) for a spaced attachment of an object (5) to a constructional component (1), the fastening device (26) including:
• an anchoring element (27) having:
• a first end (31) with an anchoring section;
• and
• a second end (32) having at least one fastening section;
• a spacing element (28) having a through-opening (29) for the anchoring element (27);
• and
• a sealing cover (11) including:
• a base plate (12) having a through-opening (13) for the anchoring element (27) of the fastening device (26) and at least one inlet opening (17);
• and
• a first circumferential web (14) projecting longitudinally from the base plate (12) and forming therewith a receiving space (16) for receiving, at least partially, the spacing element (28) of the fastening device;
• wherein the internal space is located between a top portion of the spacing element (28) and the base plate (12) of the sealing cover (11), and the internal space is filled with the filling mass (30) which is inserted through the at least one inlet opening (17).