90115-ZV5-000 Hex (8X25) Bolt - Overview. The 90115-ZV5-000 Hex (8X25) Bolt is a critical fastening component designed for Honda marine engine systems. This OEM bolt plays an essential role in securely holding various engine and extension case components, ensuring the structural integrity and reliable operation of the marine engine. Built to factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Hond