Profile: National Sintered Alloys, Inc. provides powder metal parts. We are an ISO 9001:2000 registered company. We work with iron, steel, stainless steel, brass, bronze and copper metals. Our product line includes retractor, hub, dead bolt, bolt and cylinder. Our hub which is made of copper infiltrated steel, that provides better physical properties than copper steel. In our shafter cap the pores are filled with copper. Our sinter hardened steel is used where high strength and wear resistance are required.