Image HT-Series ISO16028 Flushface Male Threaded Coupler Markets Construction, Energy / Oil & Gas Jump to Section Product Options Related Products Product Options Part Number Length Maximum OD Body Size Thread Thread Size Material 3HTOM4 2.75" (69.9 mm) 1.24" (31.5 mm) 3/8" Male ORB 3/4"-16 Steel 3HTM3 2.88" (73.2 mm) 1.24" (31.5 mm) 3/8" Male NPTF 3/8"-18 Steel 3HTM4 2.97" (75.4 mm) 1.24" (31.5 mm) 3/8" Male NPTF 1/2"-14 Steel Related Products Image HT-Series Flushface Coupler Dust Plug Image HT-Series Flushface Female Threaded Coupler Image HT-Series Flushface Female Threaded Plug Image HT-Series ISO 16028 Flushface Male Threaded Plug