90101-ZW5-000 Stud (12X150) Bolt - Overview. The 90101-ZW5-000 Stud (12X150) Bolt is a precision-engineered component designed specifically for Honda marine engine systems. This stud bolt plays a crucial role in fastening and securing key engine parts, helping to maintain the structural integrity and reliable operation of your marine engine. Manufactured to exact factory specifications with dimensions of 12mm diameter and 150mm length, it ensures seamless integration with existing parts, maintai