The Wedge Anchor also known as Sleeve Anchor or Through Bolt Anchor can be installed through the work piece. This saves considerable time in installation avoiding alignment errors and provides an exceptionally efficient retention method for fixing to concrete and stone. Its firm fixing action permits repeated removal and replacement of the nut without weakening the anchorage. As the bolt is driven into the fixing hole the clip is compressed ensuring a tight interference fit. When torque is then applied to the nut the tapered section of the bolt retracts through the clip which expands to create a rapid and permanent grip. As for the internal threaded version TBA-I, it can be installed in normal drill holes without a setting tool. Features • Easy installation • For use in cracked and non-cracked concrete • For medium-high loads • Previous installation, or at the drilling of the material to be fixed • Wide range of lengths and diameters available: installation flexibility • For static or almost static loads.