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2. Wall plug - Wikipedia

   en.wikipedia.org/wiki/Wall_plug

   [1] [2] It is a type of anchor that can be used to allow screws to be fitted into masonry walls. In US English, mentions of drywall anchors are sometimes meant (and taken) to refer specifically to the type of plastic wall plugs with expandable wings for hollow walls, in contradistinction with mollies and toggle bolts.

3. Molly (fastener) - Wikipedia

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

   Other names used for this same general type of fastener include hollow-wall anchor and hollow-door anchor, sometimes with design variations but always with the same design theme of expansion via deformation as the screw is tightened. The name drywall anchor sometimes is used in a way that includes both mollies and plastic deformable anchors ...

4. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   The term fine adjustment screw typically refers to screws with threads from 40–100 TPI (Threads Per Inch) (0.5 mm to 0.2 mm pitch) and ultra fine adjustment screw has been used to refer to 100–254 TPI (0.2 mm to 0.1 mm pitch). These screws are most frequently used in applications where the screw is used to control fine motion of an object.

5. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are referred to as LDT's. This type of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. These screws are often blue, white, or stainless ...

6. Fischerwerke - Wikipedia

   en.wikipedia.org/wiki/Fischerwerke

   In 1958 Artur Fischer designed the first plastic S-Plug which enables screws to be fastened into masonry substrate. Strong demand meant the company expanded rapidly and within three years the first subsidiaries were founded in Brazil and France.

7. Artur Fischer - Wikipedia

   en.wikipedia.org/wiki/Artur_Fischer

   Typical Fischer-Plugs Fischer invented wall plugs to hold screws (not all of Fischer Brand) Artur Fischer (31 December 1919 – 27 January 2016) was a German inventor. He is best known for inventing an expanding plastic version of the wall plug. [2] Born in Tumlingen, Artur Fischer was the son of the village tailor Georg Fischer.