90118-881-000 Hex (6x8) Bolt - Overview. The 90118-881-000 Hex (6x8) Bolt is a precision-engineered fastener supporting Honda marine engine systems. This bolt plays a critical role in securing mechanical components, ensuring the integrity and stability of assemblies in demanding marine environments. Designed to meet Honda's strict factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda bolt desi