Kichler 15601BKT Accessory Mounting Flange, Textured Black 4 in W x 0.5-inch NPSM thread Sold as one unit Textured Black finish Available in Textured Architectural Bronze, Textured Black, Textured Midnight Spruce, Brass (Unfinished), Bronzed Brass, and Textured White finishes Neoprene gasket supplied