T-H Marine Drain Plug DP-1-DP

Self Retaining Boat Transom Drain PlugThis screw-type drain plug is constructed of black polypropylene and features an chemically inert “O” ring for positive sealing. Strong threads maintain sealing under high vibration conditions. Special design prevents cross thread.Mounts in a 1” diameter hole with 2 (two) number 8 countersunk stainless steel screws. The back side of mounting flange has a groove to hold sealant for positive water proof mounting. Mounting flange is approximately 1-1/2” x 2”.