... :carbon steel . Pack:carton or bag with pallet Hex nutsSize:M8-M64 standard:DIN,GB,JIS,ANSI,ASME, ... hot dip galvanized,black, plain colorfull,blue-whiterank:4,5,6,8,10,material:carton steel,low-carton steel, ... sack+pallet according to customers'requirementOur company mainly produces:hex bolts,hex nuts,socket cap bolts,anchor bolts,tower bolts, ... ,falt washers,spring washers,threaded rod G.I hex nut M20