90003-ZZ5-M01 Bolt-Washer (6X27) - Overview. The 90003-ZZ5-M01 Bolt-Washer (6X27) is a crucial component in Honda marine engine systems. This bolt-washer assembly supports securing mechanical assemblies, ensuring optimal stability and reliability in marine conditions. Designed to meet Honda's strict factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Specially designed bolt-washer assembly measuring 6mm x 27m