Stud bolts 1.Standards:ASTMA 193 B7 ,ASTMA193 B7 2.Material:stainless steel,carbon steel 3.Finish:Plain,ZP,YZP,Black,HDG Stud boltsGB901,HG20613,STUD BOLTS,SHORT B7 THREAD BAR,MATERIAL IS B7STANDARD : ASTMA193 B7,ASTMA193 B7MTHE FINISH : PLAIN,BLACK,Z/P,HDG,DACROMET