90305-ZW9-000 Self-Lock (8mm) Nut - Overview. The 90305-ZW9-000 Self-Lock (8MM) Nut is a specialized OEM hardware component designed for Honda marine engine rigging systems. This self-lock nut plays an essential role in securing connections, preventing loosening due to vibration in demanding marine environments. Engineered for seamless integration, it maintains optimal performance and durability with factory-matched specifications.. Key Features. Designed as a self-locking 8mm nut for secure fastening.. OEM genuine Honda component ensuring material and dimensional precision.. Contributes to maintaining rigging integrity and system reliability.. Manufactured to factory specifications for consistent fit and function.. Integrates cleanly with existing Honda marine rigging hardware and accessories.. Helps sustain expected durability and vibration resistance in marine conditions.. Why Choose Genuine OEM. Using original Honda parts like the 90305-ZW9-000 Self-Lock (8MM) Nut preserves the int