90110-ZW1-003 Hex Bolt - Overview. The 90110-ZW1-003 Hex Bolt is a crucial fastening component used in Honda marine engine systems. This genuine OEM part plays a vital role in securely assembling essential engine parts, supporting the integrity of the marine system's mechanical functions. Engineered to meet precise factory specifications, the hex bolt ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM hex bolt designed spe