SS sharp nut cap Dia:Min 2mm Surface :BO SGS audited More than ... 1,Name:SS sharp nut cap;SS nut cap;Sharp nut cap 2,For the similar nut cap,what can we do ?(1 ... ), Ability for the material of this kind of nut cap: Grade3.6,4.6,4.8,5.6,6.8 ... etcAlloy steel4130,4140,G51150,etcStainless steel201,202,301,302,303,304,316,310,430,etcBrassC28000,C37710,C3450,C27200,etcBronzeC51900,C60600,C17200,etcAlumimum100 ...