Mercury - Quicksilver Thrust Hub Propeller Hardware Stainless Steel 161452. Overview. Power on the water isn't just about horsepower - it's about how well that power reaches your propeller. The Mercury Marine 161452 Quicksilver Thrust Hub is the small but critical piece that makes sure your prop stays secure and every bit of torque gets transferred cleanly. Built from hardened stainless steel, it's made to stand up to heavy loads, hard acceleration, and constant vibration without wearing down or