T-H MARINE Self Retaining Drain Plug Extension

Self Retaining Boat Transom Drain Plug This 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. This drain plug 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´. This drain plug is ideal for boat transoms, fish wells, bait tanks, water tanks, coolers, ice chests or almost any application where a positive sealing drain plug is required. This drain plug is not only quick and simple to install, but it also provides a definite cost advantage over outdated, leaking flared-type drain tubes. This retained plug will not get lost.