90001-ZVD-000 Special (6mm) Bolt - Overview. The 90001-ZVD-000 Special (6mm) Bolt is a critical component designed for Honda marine engine systems, specifically within the Active Marine system. This specialized bolt plays a vital role in securing components, ensuring reliable mechanical connections under demanding marine conditions. Crafted to exact factory specifications, it guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Speci