Internal thread anchor without collar for suspension of threaded ends in concrete. Due to the lack of collar, it can be easily smeared into the wall for temporary attachments. Install only with matching Sympafix impact pin. The drop-in anchor is installed correctly once the widened edge of the impact post touches the collar of the anchor. ETA approved for multiple fixings in both the tensile and compression zones of concrete. Also equipped with fire approval for 120 minutes.