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2. Bolt (fastener) - Wikipedia

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

   A bolt is an externally helical threaded fastener that fastens objects with unthreaded holes together. This is done by applying 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] Unlike a screw, which holds objects together by the restricting motion ...

3. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   An elevator bolt is a similar to a carriage bolt, except the head (or foot, depending on the application) is thin and flat. There are many variations. [11] Elevator bolts are designed to be used for leveling appliances or furniture. eye bolt: An eye bolt is a bolt with a looped head.

4. Torx - Wikipedia

   en.wikipedia.org/wiki/Torx

   A Torx T8 screw head on a hard disk drive. Torx (pronounced / tɔːrks /) is a trademark for a type of screw drive characterized by a 6-point star-shaped pattern, developed in 1967 [ 1] by Camcar Textron. [ a] A popular generic name for the drive is star, as in star screwdriver or star bits. The official generic name, standardized by the ...

5. Bolted joint - Wikipedia

   en.wikipedia.org/wiki/Bolted_joint

   A bolted joint is one of the most common elements in construction and machine design. It consists of a male threaded fastener (e. g., a bolt) that captures and joins other parts, secured with a matching female screw thread. There are two main types of bolted joint designs: tension joints and shear joints. The selection of the components in a ...

6. List of screw drives - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_drives

   The hex head is used to drive the bolt into the countersunk hole, then either a wrench or hammer is used to break the shank and hex head from the flat head, or it is driven until the driving head shears off. Either method leaves only a smooth bolt head exposed. This type of bolt is commonly used with prison door locks, automobile ignition ...

7. Captive bolt pistol - Wikipedia

   en.wikipedia.org/wiki/Captive_bolt_pistol

   Captive bolt pistol. A captive bolt pistol (also known as a captive bolt gun, a cattle gun, a stunbolt gun, a bolt gun, a stun gun and a stunner) is a device used for the stunning of animals prior to slaughter . The goal of captive bolt stunning is to inflict a forceful strike on the forehead with the bolt in order to induce unconsciousness.