90129-ZVP-000 Hex (12x180) Bolt - Overview. The 90129-ZVP-000 Hex (12x180) Bolt is a critical fastener used in Honda marine engine systems. This OEM hex bolt supports reliable mechanical assemblies by maintaining firm, secure connections. Designed to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM hex bolt measuring 12 mm in diameter and 180 mm in length.. Precision manufactured to