90011-PH3-000 Flange (12mm) Bolt - Overview. The 90011-PH3-000 Flange (12mm) Bolt is an essential fastening component used in Honda marine engine systems. This bolt plays a crucial role in securely fastening various parts of the engine assembly to maintain the integrity and reliable operation of the system. Manufactured to match exact Honda factory specifications and tolerances, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. De