90101-ZVA-000 Bolt Hex (6X24) - Overview. The 90101-ZVA-000 Bolt Hex (6X24) is an essential fastener used in Honda marine engine systems. It is designed to secure components reliably within the mechanical assemblies of the engine, contributing to smooth operation and long-lasting performance. As a genuine OEM part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Hexagonal bolt with dimensions 6x24 mm, engineered for precise fit