... -22A,SAE1018, 50BV30,SCM435,SCM440,ML35, SCr420B, 35VB, SWRCH35K, SWRCH40K Cold heading wire rodSize: 5.5--42mmGrade:SWRCH6A-22A,SAE1018, 50BV30 ... wire rod is usually applied to fastener, fitting(eg., bolt, nut, screw, rivet and so on.), shipbuilding, electronic, and building industry ...