Ancra Bolt-on Fitting Kit is a quick disconnect fitting that can be installed in a pick-up bed, trailer or van. Fitting disengages completely from the contoured anchor plate. Anchor Plate machined from aluminum extrusion. Backing plate to add support to truck or van beds and walls. The fitting is an aircraft quality single stud fitting with ring. Working load capacity is 500 pounds horizontal pull, 1,000 pounds vertical pull. Mounting hardware and installation instructions included; sold as each.