16081-ZY9-003 Screw-Washer - Overview. The 16081-ZY9-003 Screw-Washer is a specialized fastener integral to Honda marine engine systems. It simplifies assembly by combining a screw and washer into a single unit, thereby enhancing the reliability and durability of critical marine engine components. Designed to support fastening tasks in marine engine assemblies, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Combines screw and w