Stainless steel internal thread with integrated expansion segment for flush mountings. All anchors can also be used with threaded rods. Approved for sprinkler systems starting from size ≥ M8. The fastening can be loosened and tightened without removing the anchor. Simple and secure installation with the setting tool. Small drill diameter and short anchorage depth. Fire resistance class R120. Approved by building authorities. High holding values. The drilling depth must be observed. The screw length must be determined according to the minimum embedment depth and the thickness of the fixture. Stainless steel A4 can be used in dry interiors, damp interiors, outdoors, including industrial atmospheres and marine environments. For use as multiple fastenings for non-load-bearing systems in cracked and non-cracked concrete. For spacer assemblies in combination with threaded rods. Pre-installation. For professional installation, use the setting tool of the Impact Tools.