90008-Zw9-000 Flange (8X35) Bolt - Overview. The 90008-ZW9-000 Flange (8X35) Bolt is a precision engineered fastener designed specifically for Honda marine engine systems. Serving a crucial role, this bolt ensures secure assembly and reliable fastening of engine components, crucial for maintaining the structural integrity and efficient operation of Honda active marine engines. Crafted to match factory specifications, dimensions, and tolerances, it ensures seamless integration with existing parts