... .,h.d.g. 3)4.8,8.8 Hex bolts with nuts: sizesM5 and upfeatureslow carton,high tensile,stailessstandardDIN,ANSI,BSW,AS,JS ... bolt.finish bright,zinc plated,hot-dip galvanized,mechanical plated ,nickel plated,blackgrades4.8,5.8,6.8,8.8,10 ... specializes in producing many kinds of fasteners , such as bolts ,nuts, washers, screws, anchors and threaded rods. Our strength: Can make custom-specific ...