HBC, 4506020, HVAC DELUXE STEAM HOT WATER UNIVERSAL FIT ALL RADIATOR VALVE 3 SCREW REPLACEMENT WHEEL HANDLE. Brand new replacement Radiator Valve Handle. Replaces most any steam or hot water valve handle as it comes with three square adapters for square shaped stems and also a round hub with triple set screw connection for round or stripped stems. Quick and easy. Installs in minutes. The Deluxe Fit All Radiator Valve Wheel Handle is designed for use on a hot water valve or a steam valve. It is compatible with most common stems. It is made of molded, thermal plastic. Molded, thermal plastic construction. For use on a hot water valve or a steam valve. Designed to fit most common stems. 3 screw stud.