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  2. Rail fastening system - Wikipedia

    en.wikipedia.org/wiki/Rail_fastening_system

    For fastening flat-bottomed rails, an upper-lipped washer can be used to grip the edge of the rail. They are more resistant to loosening by vibrations and movement of the rail. [21] They are thought more effective than spikes and screws and so are used in positions such as switch (point) tieplates [22] and on sharp curves. [23]

  3. Direct tension indicator - Wikipedia

    en.wikipedia.org/wiki/Direct_tension_indicator

    The RCSC specification has been adopted, in its entirety, by the American Institute of Steel Construction and appears as section 16 of that organization's Steel Construction Manual. DTIs within the RCSC specification section 8.2.4 are described thus: "ASTM F959 direct tension indicators are recognized in this Specification as a bolt-tension ...

  4. Split pin - Wikipedia

    en.wikipedia.org/wiki/Split_pin

    A split pin (UK usage) / cotter pin (UK/USA usage) holding a rod in place with a washer. A split pin, also known as a cotter pin, or cotter key in the US, [1] is a metal fastener with two tines that are bent during installation, similar to a staple or rivet.

  5. Positive locking device - Wikipedia

    en.wikipedia.org/wiki/Positive_locking_device

    A positive locking device is a device used in conjunction with a fastener in order to positively lock the fastener. This means that the fastener cannot work loose from vibrations. The following is a list of positive locking devices: [1] A split beam nut; A castellated nut and a split pin; A hex nut or cap screw and a tab washer

  6. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Fasteners commonly used with piping are a stud bolt [26] with nuts (usually fully threaded, with two heavy, hexagonal nuts); a machine bolt and nut; or a powder-actuated tool (PAT) fastener (usually a nail or threaded stud, driven into concrete or masonry).

  7. Hose clamp - Wikipedia

    en.wikipedia.org/wiki/Hose_clamp

    The clamp is put around the hose or tube to be connected, with the loose end being fed into a narrow space between the band and the captive screw. When the screw is turned, it acts as a worm drive pulling the threads of the band, causing the band to tighten around the hose (or when screwed the opposite direction, to loosen).

  8. Forget the dealership: You can now buy a Hyundai on Amazon

    www.aol.com/finance/forget-dealership-now-buy...

    After nearly a year of waiting, Amazon (AMZN) users can now buy a Hyundai (HYMTF) vehicle through the online retailer. Starting today, Amazon car shoppers in 48 cities, including New York, Los ...

  9. Banjo fitting - Wikipedia

    en.wikipedia.org/wiki/Banjo_fitting

    The copper crush washer in the gap between the fitting and body of the caliper completes the seal. Compared to pipe fittings that are themselves threaded, banjo fittings have the advantage that they do not have to be rotated relative to the host fitting. This avoids damage that can be caused by twisting the hose during installation.