Cast brass washer backing plate fits underneath the boat and accommodates the bottom portion of the rudder stuffing box. Sized to fit the 1" and 1 1/8" rudder stuffing boxes #90-101B & 90-102B.
Square holes take 5/16" carriage bolts
WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov