The world's largest hex nut will soon be on display at a bolts and fasteners company in Humble, Texas. JK Welding Company is constructing "Big Tex: The Incredible Hex," which is expected to break the current record of largest hex nut, held by a company in Slovenia. A company spokesman says the enormous steel nut will measure 16-feet from flat side to flat standing, and 18-feet from point to point. When it's finished, which may be as soon as Friday, the nut will be on display at Patriot Bolt and Fasteners in Humble.