3/8"-16 TPI, 0.452 to 0.472" OD, 0.375" L, Nitronic 60, 9-1/4-Coils, Diamond Knurled, Free Running, Tanged, Screw Threaded Insert Screw Threaded Insert Type Diamond Knurled, Free Running, Tanged Nominal Diameter 3/8 Inch TPI 16 Thread Series UNC-2A...