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2. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   Anchor bolt. Anchor bolts are used to connect structural and non-structural elements to concrete. [2] The connection can be made by a variety of different components: anchor bolts (also named fasteners), steel plates, or stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces.

3. Rail fastening system - Wikipedia

   en.wikipedia.org/wiki/Rail_fastening_system

   A rail fastening system is a means of fixing rails to railroad ties (North America) or sleepers (British Isles, Australasia, and Africa). The terms rail anchors, tie plates, chairs and track fasteners are used to refer to parts or all of a rail fastening system. The components of a rail fastening system may also be known collectively as other ...

4. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   anchor bolt: A special type of bolt that is set into concrete, with screw threads protruding above the concrete surface to accept a nut. breakaway bolt: A breakaway bolt is a bolt with a hollow threaded shank, which is designed to break away upon impact. Typically used to fasten fire hydrants, so they will break away when hit by a car. Also ...

5. Anchor plate - Wikipedia

   en.wikipedia.org/wiki/Anchor_plate

   Anchor plate. An anchor plate, floor plate[1] or wall washer is a large plate or washer connected to a tie rod or bolt. Anchor plates are used on exterior walls of masonry buildings, for structural reinforcement against lateral bowing. Anchor plates are made of cast iron, sometimes wrought iron or steel, and are often made in a decorative style.

6. Bolt (fastener) - Wikipedia

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

   Bolt (fastener) A bolt is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to a matching nut. The bolt has an external male thread requiring a matching nut with a pre-formed female thread. [1]

7. Molly (fastener) - Wikipedia

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

   Molly fastener. A molly or molly bolt (often misspelled moly[1]) is a type of screw fastener that fastens objects to plaster or gypsum board hollow walls by providing an anchor to be lodged inside a hole and expanded once in position. Larger sizes permit reasonably heavy objects, such as shelving, flatscreen-TV mounts or central-heating ...