Select a Product Part NumberMaterialThreadThread SizeBody SizeLength 2TBM2SteelMale BSPT1/4"-191/4"2.36" (59.9mm) 3TBM3SteelMale TPI1.9"3/8" 2TM2SteelMale NPTF1/4"-181/4"2.16" (54.9mm) 3TM3-SS316 Stainless SteelMale NPTF3/8"-183/8"2.59" (65.8mm) 3TM3SteelMale NPTF3/8"-183/8"2.59" (65.8mm)