weld stud with high quality and competitive price Material:Aluminum, stainless steel, iron,copper Size:M3-M20 weld stud with high quality and competitive priceMaterial:Aluminum, stainless steel, ironSize:M3-M20Standard:GB,DIN,ISO,ANSI,JIS etcwe also can according to the customers drawing to make M6 all threaded IT weld stud