90114-881-000 Bolt Hex (6X40) - Overview. The 90114-881-000 Bolt Hex (6X40) is a crucial fastening component designed for Honda marine engine systems. This genuine OEM hex bolt plays a vital role in securely mounting parts within Honda marine engines, ensuring structural integrity and smooth operation under diverse marine conditions. Engineered to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. High