... rivet,bladecarryingaxle,central spindle,stud, hexagonal bar,nut,iron prop,Copper Pillar,motor axle,toy spindle,light- ... for stationery,clock and machineries.Suitable material: copper,iron,aluminum,stainless steel,teflon, plastic-steel,plastic,etc ... ,precision high quality socket head cap screws,thread socket head cap screwsBrand NameJIA CAIMaterialStainless steel, iron, copper, aluminium ,carbon ...