90129-Zz3-000 Hex (12X119) Bolt - Overview. The 90129-ZZ3-000 Hex (12X119) Bolt is a crucial fastening component designed for Honda marine engine systems. This hex bolt, measuring 12mm in diameter and 119mm in length, plays a vital role in securing engine parts and maintaining structural integrity under demanding marine conditions. Precision manufactured to match Honda's strict OEM standards, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Ke