stud bolt astm a193 b7 1.Grade:AASTM A193 B7 2.Size:M6--M64 1/4-2'' 3.Length:16- ... 300mm 4.Finish:plain,zinc plated,HDG... stud bolt astm a193 ... .2,GR.5,GR.8,A325-1,A490-1 ,GR.B7,GR.B7M3) Material :stainless steel :302 ,304 ,305 ,316, 304L ... plastic box. 3)As to customers' requirement stud bolt astm a193 b7