Spikes are long, thick, sharp-pointed fasteners made of metal or plastic. They are similar to heavy nails and used in railroad ties and other heavy-duty construction applications. There are many types of spikes. Examples include metal spikes, plastic spikes, railroad spikes, standard cut spikes, and stakes. A metal spike is made of aluminum, brass, or nickel and is stable, durable, and strong. A plastic spike is made of plastic materials and suitable for light-weight applications. A railroad spike has an L-shaped head and a square shank with a wedge-shaped tip. A standard cut spike can be driven through planking or heavy timber, and can be used for deck or bridge work. A stake is made of wood or metal and sharpened at one end for driving into the ground as a marker, fence pole, or tent peg. Other types of spikes are also available.