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2. Toggle bolt - Wikipedia

   en.wikipedia.org/wiki/Toggle_bolt

   A toggle bolt, also known as a butterfly anchor, is a fastener for hanging objects on hollow walls such as drywall. Toggle bolts have wings that open inside a hollow wall, bracing against it to hold the fastener securely. [1] The wings, once fully opened, greatly expand the surface area making contact with the back of the hollow wall.

3. Molly (fastener) - Wikipedia

   en.wikipedia.org/wiki/Molly_(fastener)

   Figure 1 of the original patent for the molly bolt, U.S. Patent No. 2,018,251. The molly bolt was patented in 1934 by George Frederick Croessant. [3] Although his patent acknowledges that expandable fasteners of this general kind were already known, Croessant's patent is intended to provide "an improved and adequate anchoring grip that may be retightened if necessary and that will permit ...

4. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   Drywall screws designated as fine are the most common screws to use the twinfast style of threads. [5] wood screw: A metal screw with a sharp point designed to attach two pieces of wood together. Wood screws are commonly available with flat, pan, or oval-heads. A wood screw generally has a partially unthreaded shank below the head.

5. USG Corporation - Wikipedia

   en.wikipedia.org/wiki/USG_Corporation

   USG entered a 15-year lease, and occupied the building in early 2007. The new building is occupied 65% by USG and 10% by Humana Inc. As an incentive for USG to remain in the downtown Chicago area, the city of Chicago created a redevelopment agreement that contributed $6.5 million to the construction of the new building. [23]

6. List of screw drives - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_drives

   The LOX-Recess screw drive was invented by Brad Wagner, and fasteners using it are distributed by licensees Hitachi, Dietrick Metal Framing, and Grabber. [38] The design is four overlapping square recesses, with 12 contact points, and is designed to tolerate more torque, decrease wear, and avoid cam-out.

7. Würth - Wikipedia

   en.wikipedia.org/wiki/Würth

   Würth was founded by Adolf Würth (1909–1954), [6] for the purpose of selling screws in 1945 in Künzelsau (hence the company logo, which consists of the family name and a W of two screw heads with cylindrical and round heads). After the death of Adolf Würth, his son Reinhold Würth took over in 1954 at the age of 19 with his mother Alma ...