INSERT RINGS FOR DECK DRAINS > WHERE THE 1/4"-20 THREADS HAVE STRIPPED OUT IN THE "EARS" IN THE DECK DRAIN BODY, AN INSERT RING MAY INSTALLED BY GRINDING OFF THE EARS, FITTING THE INSERT RING INTO THE DECK DRAIN BODY, FASTENING THE RING IN PLACE USING SET SCREWS PROVIDED WITH THE RING, THEN DRILLING AND TAPPING NEW 1/4"-20 HOLES. THIS PROCEDURE ENSURES THE STRAINER REMAINS SECURELY FASTENED TO THE DECK DRAIN BODY. > SPECIFY WHEN ORDERING: BRASS OR ALUMINUM, OUTER DIAMETER OF RING NEEDED (SINCE INNER DIAMETER OF DECK DRAIN BODY VARIES DEPENDING ON MANUFACTURER), NUMBER OF SET SCREW HOLES (EQUAL TO NUMBER OF SCREW HOLES IN STRAINER)