Product Information Material: Brass Select a Product Part NumberMale ThreadMale Thread SizeLength 1720404CNPSM, NPTF1/4", 1/4"1.25" 1720808CNPSM, NPTF1/2", 1/2"1.53" 1720604C3/8" NPSM x 1/4" NPTF1.28" 1720402CNPSM, NPTF1/4", 1/8"1.06" 1721212CNPSM, NPTF3/4", 3/4"1.53" 1720806CNPSM, NPTF1/2", 3/8"1.35" 1720202CNPSM, NPTF1/8", 1/8".94" 1720608CNPSM, NPSM3/8", 1/2"1.47" 1720606CNPSM, NPTF3/8", 3/8"1.30"