... 2) Grade 10.9, 12.9 3)ISO9001&TS16949 Different type of tapping screws,hexagon socket screws 1). QUALITY: Grade 10.9 ... ). FINISHING: Zinc phosphate + Protective Oil , Zinc Galvanize (Silver / Yellow) / Dacromaet ; 3).Applicable For ISUZU,TOYOTA, NISSAN,MITSUBISHI,HINO, HYUNDAI, DAEWOO,KIA ... our best supportCERTIFICATE TS16949 Different type of tapping screws,hexagon socket screws