weld stud,cd stud Self Clinching Studs Spline Bolts Capacitor Discharge Studs shear stud welding weld stud, WELDING BOLTmaterial:mild steel, aluminium, stainless steelsize:M3 to M12Length:10mm to 100mmplated:copper, nickel, zinc, black finishedstandard:ISO,GB,ETC cord formed part