weld screw with high quality and competitive price Material:Aluminum, stainless steel, iron,copper Size:M3-M20 weld screw with high quality and competitive priceMaterial:Aluminum, stainless steel, iron,copperSize:M3-M20Standard:GB,DIN,ISO,ANSI,JIS etcwe also can according to the customers drawing to make d6l d2bh1d1M3 6-30mm 6,0 mm 5 mm 0,7-1,4 mm 5 mmM48-35mm 7,0 mm 6 mm 0,7-1,4 mm 6 mmM510-40mm ...