Fasteners are common assembly parts that may be used to mechanically join two or more components together. With a variety of fastener types available, a number of attachments can be made to accommodate varying assemblies and requirements. Within the realm of aviation in particular, fasteners are constructed with high quality and optimal strength attributes to assist in aircraft construction and repair. On a single Boeing 747-800 alone, half of the 6,000,000 parts used for assembly are fasteners. With the grand importance that such hardware serves for aviation applications, understanding the more common types and materials used can benefit those who work on or with aircraft.