EGV-G EGV-M Male stud standpipes Male stud standpipes stud pre-installed with cutting ring and nut male thread G / DIN ISO 228 range L: tube-Ø 6 - 42 range S: tube-Ø 6 - 38 stud pre-installed with cutting ring and nut male thread M / DIN 13 range L: tube-Ø 6 - 42 range S: tube-Ø 6 - 38