TAS-TDA expansion anchor

This anchor is very simple to apply and works by expansion. By tapping inside it with the so-called expanders, a cone inserted in its interior slides expanding the lower part of the anchor, which causes friction on the walls of the hole made, thus anchoring it. It has an inner thread that, once the sleeve is anchored in the hole, makes it possible to thread a threaded set screw or another threaded element to finish off the fastening.