Product Information Material: Brass Female Thread: NPTF Male Thread: UNS Select a Product Part NumberFemale Thread SizeMale Thread SizeLength 207BH81/2"1-1/8"-141.50" 207BH63/8"1"-141.31" 207BH4S1/4"3/4"-16.94" 207BH123/4"1-5/16"-121.50" 207BH21/8"5/8"-181.50" 207BH41/4"3/4"-161.50"