90129-ZX2-000 Hex (12X130) Bolt - Overview. The 90129-ZX2-000 Hex (12X130) Bolt is a critical fastener used primarily in Honda marine engine systems. Designed to secure components reliably, it plays an essential role in maintaining the overall mechanical integrity and function of the engine system. This bolt ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Hex-head bolt with specifications of 12mm diameter and 130mm length, tailored