A Small But Essential Component for Reliable Performance. Every bolt and screw in your marine engine serves a purpose, and when one fails, it can lead to bigger problems. The Mercury M6 x 20 Screw (10-8M0204706) is designed to keep key engine components secure, ensuring everything stays in place even under the toughest conditions. Whether fastening gear housing components or securing water pump assemblies, this precision-engineered screw plays a critical role in maintaining performance and reliability.. Why It's Built to Last:. Precision Fit - With exact M6 x 20 mm dimensions, it's designed for a seamless replacement with no modifications needed.. Marine-Grade Durability - Made from corrosion-resistant metal to withstand exposure to saltwater, extreme temperatures, and constant vibrations.. OEM Reliability - A genuine Mercury part that meets factory specifications for compatibility and performance.. Ideal for:. Gear Housing & Driveshaft Assemblies - Commonly used in high-performance mo