90027-ZY9-M01 Flange (8x60) Bolt - Overview. The 90027-ZY9-M01 flange (8x60) bolt is a genuine OEM component designed specifically for Honda marine engine systems. It serves the essential function of securely fastening and supporting various mechanical assemblies within the engine's structure. By ensuring precise fitment and tight fastening, this bolt guarantees seamless integration with existing parts, maintaining optimal performance and durability throughout the operational lifespan.. Key Feat