With the internal thread sleeve and matching plastic sieve sleeve, loads are attached to walls and ceilings made of concrete and masonry without expansion pressure in conjunction with the injection mortar VMU plus. The internal thread sleeve VMU-IG M6x80 mm is mounted with the plastic sieve sleeve VM-SH 16x85. The internal thread sleeves VMU-IG M8x80 and VMU-IG M10x80 mm are mounted with the plastic sieve sleeve VM-SH 20x85.