EXPANSION ANCHOR HAVING ANTI-ROTATION MEANS

摘要

The invention relates to an expansion anchor comprising a bolt and an expansion sleeve surrounding the bolt, said bolt having: an expansion cone in the region of the front end of the bolt, which expansion cone radially enlarges the expansion sleeve when moved into same; a threaded section for introducing tensile forces into the bolt; a shoulder that limits a movement of the expansion sleeve away from the expansion cone; and at least one anti-rotation protrusion for inhibiting a rotation of the expansion sleeve in relation to the bolt, said protrusion originating at the shoulder and protruding radially outwards on the bolt. According to the invention, the axial length of the anti-rotation protrusion is smaller than the pitch of the threaded section arranged on the bolt.