90010-ZW9-030 Flange (6X98) Bolt - Overview. The 90010-ZW9-030 Flange (6X98) Bolt is a critical component in Honda marine engine systems. It plays a vital role in securely fastening various components to ensure stable mechanical connections and reliable operation. Engineered to meet factory specifications, this bolt supports structural integrity and smooth function within the marine environment. Designed specifically for Honda marine applications, it ensures seamless integration with existing pa