Structural blind anchor bolt

An anchor assembly having a nut which is pivotably connected to a sleeve which is slideable along a rod housing. The nut is pivotable to and from a position in vertical alignment with rod housing and a position perpendicular to the rod housing in which a threaded nut opening is in vertical alignment with a opening of the rod housing. A flange is disposed above the rod housing and a stop washer is disposed above the flange, the rod insertable within both the flange and washer. The threaded rod is insertable through the rod opening of the rod housing and threadable within the threaded opening of the nut when the nut is in a position perpendicular to the rod housing. When the nut of the anchor assembly is positioned into vertical alignment with the rod housing, the assembly can fit into a narrow hole. Once the nut clears the opening, the nut moves into the position perpendicular to the rod housing so that the rod may be threaded through the nut opening. The rod is threaded through the nut opening until the washer contacts the flange at which point the nut is drawn up to a bottom side of a substrate surface by way of the slideable sleeve.