Hayward RCX12011 Pan Screw Replacement for Select Hayward Commercial and Robotic Cleaner, Set of 5 Pan screw replacement Fits hayward shark vac, tigershark, qc and plus robotic cleaner models rc9740, rc9742, rc9956cc, rc9965cc, rc9950a, rc9990, rc9950, rc9990a, rc9955gr Also fits hayward makoshark2, kingshark and kingshark2 commercial cleaner models rc9434, rc9535d, rc9850d, rc9860dcc Measures M 5 by 20-inch thread Weighs 1/2-pound; 5 per pack