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  2. Fastener - Wikipedia

    en.wikipedia.org/wiki/Fastener

    A fastener (US English) or fastening (UK English) [ 1] is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. [ 2] Steel fasteners are usually made of stainless ...

  3. Bolt Food - Wikipedia

    en.wikipedia.org/wiki/Bolt_Food

    Bolt Food is an online food ordering and delivery platform launched by Bolt in 2019. Meals and groceries are delivered by couriers using cars, scooters, bikes, or on foot. Bolt Food is operational in over 80 cities across 19 countries as of 2023. The service has more than 6 million registered users globally, and features more than 30,000 ...

  4. Screw - Wikipedia

    en.wikipedia.org/wiki/Screw

    Screw. An assortment of screws, and a US quarter for size comparison. A wood screw: a) head; b) non-threaded shank; c) threaded shank; d) tip. The six classical simple machines. A screw is an externally helical threaded fastener capable of being tightened or released by a twisting force ( torque) to the head. The most common uses of screws are ...

  5. Sex bolt - Wikipedia

    en.wikipedia.org/wiki/Sex_bolt

    A sex bolt is a type of fastener comprising a mated pair of screw and post, which are a machine screw and a nut that is barrel-shaped. The nut has a flange and a protruding boss that is internally threaded. The bolt (mated pair, screw and post) sits within the components being fastened, and the flange provides the bearing surface.

  6. Unified Thread Standard - Wikipedia

    en.wikipedia.org/wiki/Unified_Thread_Standard

    Unified Thread Standard. The Unified Thread Standard ( UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. It is the main standard for bolts, nuts, and a wide variety of other threaded fasteners used in these countries.

  7. 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 ...

  8. List of screw and bolt types - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_and_bolt_types

    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 used in aircraft ...

  9. Pyrotechnic fastener - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_fastener

    A pyrotechnic fastener (also called an explosive bolt, or pyro, within context) is a fastener, usually a nut or bolt, that incorporates a pyrotechnic charge that can be initiated remotely. One or more explosive charges embedded within the bolt are typically activated by an electric current, and the charge breaks the bolt into two or more pieces ...