... 6,8,10,material:carton steel,low-carton steel,Q235 and 45#steel,35Crmopacking:carton+pallet bag+pallet according to ... customers'requirementOur company mainly produces:hex bolts,hex nuts,socket cap bolts,anchor bolts,tower bolts,dorble-headed bolts ... ,galvanized bolts,and a variety of special bolts ,falt washers,spring washers,threaded ...