16016-ZW6-621 Screw Set - Overview. The 16016-ZW6-621 Screw Set is an essential hardware component supporting the carburetor system in Honda marine engine systems. This genuine OEM screw set secures critical components within the carburetor, ensuring reliable assembly and maintaining engine integrity for optimal operation. Designed to exact factory specifications and tolerances, it ensures seamless integration with other hardware and parts, maintaining peak durability and performance.. Key Features. Genuine OEM Honda screw set for carburetor assembly.. Critical for securing carburetor components in marine engines.. Manufactured to strict factory specifications for precision fit and function.. Enhances system reliability by maintaining secure mechanical connections.. Matches dimensions and tolerances to original factory parts.. Ensures longevity and smooth operation of the carburetor system.. Why Choose Genuine OEM. Using original Honda parts like the 16016-ZW6-621 Screw Set preserves t