... finish: zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB,JIS,Non- ... 70, A4-80. Material: 304, 316, 316L.6. International internal and external hexagon bolt with the mechanical property of Grade ... Jinrui has passed ISO9001:2008international quality system certification in 2001 and TS16949 automobile quality control system in 2012. We also obtained special ...