90081-ZZ5-M01 Sealing (22Mm) Bolt - Overview. The 90081-ZZ5-M01 Sealing (22MM) Bolt is a crucial component in Honda marine engine systems. Designed to create a watertight seal, this bolt supports critical sealing functions that prevent leaks and ensure smooth operation within the engine assembly. Engineered to integrate seamlessly with existing systems, it plays a vital role in maintaining the reliability and longevity of your marine engine by ensuring a precise, leak-proof fit.. Key Features. G