Select a Product Part NumberMaterialThreadThread SizeBody SizeLength H1OM3SteelMale ORB9/16"-181/8" H1M2SteelMale NPTF1/4"-181/8" H2M3SteelMale NPTF3/8"-181/4"2.03" (51.6mm) H4M6-S303 Stainless SteelMale NPTF3/4"-141/2"2.13" (58.7mm)