90101-ZX2-C00 Bolt-Washer (6X16) - Overview. The 90101-ZX2-C00 Bolt-Washer (6X16) is an essential fastener designed for Honda marine engine systems. This bolt with an attached washer, measuring 6mm in diameter and 16mm in length, plays a crucial role in securely fastening components while supporting structural integrity and reliable operation. Engineered to meet exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key