90054-ZY9-M01 Flange (8x35) Bolt - Overview. The 90054-ZY9-M01 Flange (8x35) Bolt is a precision-engineered fastener designed to secure flanges within Honda marine engine systems. This essential component plays a crucial role in maintaining structural integrity and ensuring reliable mechanical connections under demanding marine conditions. Manufactured to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Featur