An angle iron is a piece of metal bent into the shape of the letter “L.” It is called an angle iron because it always has a 90 degree angle. Usually, the piece is created from galvanized steel iron, which is a form of iron that has strength that is more flexible and a higher resistance to oxidation than traditional iron. Angle iron pieces are used in nearly every industry, but you often see them most in construction and factory production. Often the factory will punch holes into each side of the metal so the metal can be easily screwed into place without special tools. Here are a few places where you might run across angle irons in your everyday life.