90104-ZW9-000 Hex (6X160) Bolt - Overview. The 90104-ZW9-000 Hex (6X160) Bolt is a critical component designed specifically for Honda marine engine systems. This bolt plays a vital role in securely fastening parts within the marine rigging and accessory systems, ensuring the overall structural integrity and reliability of your engine assembly. Crafted to meet stringent factory standards, it guarantees seamless integration with existing hardware, maintaining optimal performance and durability.. K