90003-ZVA-000 Flange (5X16) Bolt - Overview. The 90003-ZVA-000 flange (5X16) bolt is a crucial fastening component within Honda marine engine systems. It is designed to secure various engine parts efficiently, ensuring reliable mechanical integrity and optimal operation. This bolt operates within the Honda marine rigging and accessories system, where precision and durability are paramount. Crafted to match exact factory specifications, it ensures seamless integration with existing parts, maintai