Replacement Aluminum Hand Wheel Kit for Compressed Gas Cylinder Valve Includes:Aluminum Hand WheelChromed Plated Lock Nut Aluminum Replacement Hand Wheel Fits Sherwood GV Series Gas Cylinder Valves and Harrison V Series Gas Cylinders Valves. Kit includes a new hand wheel and lock nut for easy installation. Time to fix that broken cylinder valve hand wheel with this high-quality hand wheel and lock nut kit. Designed to with original fit and function, square hole, turn arrows and open/close markings. NOTE: This kit includes the installation nut! Designed for Sherwood GV valves and Harrison V Series valves, may not fit other manufacturers. (Square Hole is 5/16”)