Fasteners are amazing creations, and ones that can be easy to take for granted. For example, of the over 6 million parts that it takes to construct a Boeing 747 aircraft, approximately 3 million of them are fasteners—a staggering number, and that’s just for one aircraft. Everyone sees the sleek machine fly overhead, but few appreciate the tiny bits that hold it all together.(…)
via In Depth: Fasteners.