In industries as rigid and regulated as aerospace and aviation, every nut and bolt is important. If you break down each assembly of an aircraft to its most basic parts, one thing you will find in all aircraft is the presence of fasteners. Fasteners are used to connect all types of parts through primary structural areas, secondary structural areas, pressurized and non-pressurized areas, and to bear or transfer a load from one part to another. To give you an idea of how critical fasteners are, look no further than the Boeing 747. There are more than 6,000,000 individual parts on that aircraft, half of which are fasteners.