90102-881-000 Hex (6X16) Bolt - Overview. The 90102-881-000 Hex (6X16) Bolt is a vital fastening component used in Honda marine engine systems. This bolt serves an essential role in securing parts firmly to maintain system integrity and reliability during operation. Engineered to OEM standards, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Specifically designed as a hex head bolt with dimensions of 6mm diameter by 16mm length,