Threaded Seamless Steel PipeModel No.:1/8"-6"Connection: MaleHead Code: RoundThread Distribution: External ThreadMaterial: IronApplication: Water PipeSurfaces: Hot Dip Galvanized or blackModel: BSPT NPT BSPThreads: DIN,Website:http://www.alllandsteelpipes.com, BS, NPTUsage: Convey Water, Oil, Gas, Steam etc.