Midland Metal 66632 Square Socket Countersunk Plug, 3/8 in MNPT, Steel, Zinc-Plated, 150 lb

Square Socket Countersunk Plug, Connection Size: 3/8 in, Connection Type: MNPT, Steel, Zinc-Plated, 3/8-18 Thread, Pressure Class: 150 lb, 0.45 in L, -20 to 350 deg F, Additional Information: 0.31 in Socket Size, 0.040 lb Weight