... , YELLOW BLUE4.size: all size M6 to M24 1/4'' to 7/8'' 5.package:plastic bag/carton box ... or plian or black5) ISO,SGS,ROHS6) different grade :4.8 grade, 6.8 grade, 8.8 grade,12. ... M6 to M36 with different length (80mm to 3000mm)Grade 4.8 Processes: Cold forging and Hot forming, with or without ... Material:Carbon Steel,45#,35CrMo,40Cr,42CrMo3.Grade:4.8s 5.8s 6.8s 8.8s 10.9s 12.9s4.Surface:Plain,ZP,Black ...