Profile: Columbia Screw Products, Inc. manufactures precision machined components. We offer aluminum alloys, plastics, which include nylon, delrin, teflon, polycarbonate, fiberglass, stainless steel alloys, super alloys such as nickel & inconel, carbon steel alloys, copper and brass alloys. We have Brown and Sharpe automatic screw machines, omniturn CNC lathe and support equipments. We provide anodizing, black oxide, chemical film & black Teflon, cadmium & chromate conversion coating, chrome plating, heat treating, non-destructive testing, passivating & cleaning, painting, powder coating, precious metals plating, solid dry film lubrication and zinc plating services.