For Brass-Plated Steel Toilet Flange Bolt Sets (Poly Bagged), each bag contains 2 each brass-plated, steel flange bolts; plated-steel, open-end, acorn hex nuts; and plated-steel round washers. Priced per set. *Note: With double nut and double washers. Also available with 2 round plastic retainer washers in place of double nut and double washer, at no additional cost. Replace "D" with "R" when ordering sets with retainer washers.