Bild H-Series ISO-B Steel Mill 'Slide Gate' Female Threaded Coupler Markets Steel Refining, Steel Melting, Steel Finishing Jump to Section Product Options Related Products Product Options Part Number Length Maximum OD Body Size Thread Thread Size Pipe Thread Seal Material 4HF4-HV 2.86" (72.6 mm) 1.86" (47.2 mm) 1/2" Female NPTF 1/2"-14 NPT / NPTF Steel F-4HF4-HV 2.86" (72.6 mm) 1.86" (47.2 mm) 1/2" Female NPTF 1/2"-14 FKM Steel Related Products Bild H-Series ISO-B Dust Cap/Plug Bild H-Series ISO-B High Volume Female Coupler Bild H-Series ISO-B High Volume Female Plug Bild H-Series ISO-B Rigid Dust Plug Bild ISO-B Steel Mill 'Slide Gate' Female Threaded Plug Bild Series-F Flow Control Valve