This object has the following keywords:

• iron - Pure metallic element having symbol Fe and atomic number 26; metallic iron is silvery in color, lustrous, soft, ductile, malleable, and slightly magnetic; it rusts when exposed to moist air. It is rarely found as a native metal (telluric iron) except in meteorites (meteoric iron). Iron is most often found throughout the world as iron oxides (hematite, magnetite, limonite, and siderite) mixed with other ores.
• spikes - Long, sharp-pointed pieces of metal or other hard material, usually non-circular in cross-section, used for fastening things securely together. In the building and railroad industries, spikes have a head, for impact insertion. For similar fasteners, but smaller and round in cross-section, use "nails (fasteners)."