NPT Black pipe fitting 1>BS American DIN 2>Banded, beaded, plain 3>Hot dipped galv, electric galv, bake galv, black 4>1 ... , round caps, etc.Size1/8"-6"Thread StandardBS ANSI & DINFinishBlack, Electric Galvanized, Hot Dipped Galvanized, all be antirust treatmentPackingCartons, woven bags ...