... ,THREAD: BSEN 10241aa2000 DIN STANDARD Steel pipe nipplesGalvanized, hot-dipped galvanized and black.ANSI/ASTM A733,ASTM A53,ANSI B1.20.1BS 1387 ... ,EN10241,ISO 7/1DIN 2982, DIN2440, DIN2999 Steel pipe socketsgalvanized&black EN10241DIN2986,DIN2448,DIN2999ANSI/ASTM A120,ASTM A865, ANSI B1.20.1 DIN2986 ...