90103-ZVP-300 Socket (8mm) Bolt - Overview. The 90103-ZVP-300 Socket (8mm) Bolt is a precision-engineered fastener used within Honda marine engine systems. This bolt plays a crucial role in securing components to maintain structural integrity and operational reliability in demanding marine environments. Designed specifically for Honda marine applications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM componen