90011-ZVP-000 Hex (12x55) Bolt - Overview. The 90011-ZVP-000 Hex (12x55) Bolt is an essential fastening component designed specifically for Honda marine engine systems. It is a high-quality hexagonal-head bolt with dimensions 12X55 mm that plays a crucial role in securely fastening various parts and components within the engine assembly to ensure reliable operation. Constructed to meet strict factory specifications, this bolt guarantees seamless integration with existing hardware while maintaini