The Boeing Company’s 747 includes over 6 million parts, half of which are fasteners. Aerospace fasteners follow strict guidelines and regulations: They must be secure to prevent pieces from disassembling, strong as to not shear when forces act upon them, yet be lightweight to help reduce aircraft weight and increase efficiency. As a result, many fasteners use lightweight materials like titanium, or have extra security features to prevent them from becoming loose and keep them in place even after losing torque...
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