... Standard:GB/T 1228-1231,ISO7412,DIN6914-6916,ASME B 18.2.6 (ASTMA325,A490), JISB1186 AS1252Grade: ... 8.8,10.9, A2,A4 Inch.size: Gr2, Gr5,Gr8, A307Surface: SELF COLOUR, BLACK,ZP,YZP,H ... tolerance according to GB/T 3103.1-2002 - b + 2 p the rest of the general tolerance ... .Yield strengthMin:940MpaGrade8.8 or 10.9StandardDIN, ANSI, ASME, ASTM, IFI, JIS, ASThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, ...