Product Information Material: Brass Male Thread: NPSM, NPTF Select a Product Part NumberMale Thread SizeLength BSM111/8", 1/8".94" BSM211/4", 1/8"1.06" BSM221/4", 1/4"1.25" BSM323/8", 1/4"1.28" BSM333/8", 3/8"1.30" BSM343/8", 1/2"1.47" BSM431/2", 3/8"1.35" BSM441/2", 1/2"1.53" BSM663/4", 3/4"1.53"