4 in. x 5 in. D Impact Sockets TIDS12 - The Home Depot

The Walton vinyl railing systems by Weatherables offers a high quality, low maintenance solution to your railing needs. These brackets are made to be used with our Walton Stair railing systems but are only needed if you intend to split a single railing kit and use in more than one place. Includes all necessary fasteners