Volume 141 Catalog Page: 626Bolt set is used to secure toilet to flangeRetaining washer secured the bolts to the flange eliminating "Fall-Through"Retaining washer is pushed onto the bolt and fastened by twisting downBolts are made of solid brass that will not rust or corrodeSet includes 2 Solid Brass Bolts And Nuts, 2 Stainless Steel Washers, 2 Retaining Washers27904L