90001-ZX2-000 Bolt (12mm) - Overview. The 90001-ZX2-000 Bolt (12mm) is a genuine OEM fastener essential for Honda marine engine systems. This bolt serves the critical role of securely fastening components within the engine's structure, ensuring reliability and safety during operation. Designed to industry-leading standards, it guarantees seamless integration with other parts, maintaining optimal performance and durability.. Key Features. 12mm bolt designed specifically for Honda marine engine sy