right-and-left threaded nut
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Nut (hardware) — A nut threaded onto a bolt A nut is a type of hardware fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads… … Wikipedia
Gender of connectors and fasteners — A male threaded pipe, left, and female threaded elbow. In electrical and mechanical trades and manufacturing, each half of a pair of mating connectors or fasteners is conventionally assigned the designation male or female. The female connector is … Wikipedia
Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch … Wikipedia
sleeve nut — noun a long nut with right hand and left hand screw threads for drawing together conversely threaded pipes or shafts … English new terms dictionary
Tap and die — Not to be confused with Tool and die. Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the… … Wikipedia
Lug nut — A lug nut is a fastener, specifically a nut, used to secure a wheel on a vehicle. Typically, lug nuts are found on automobiles, trucks (lorries), and other large vehicles utilizing rubber tires. This is because tires must be changed, because the… … Wikipedia
Piping and plumbing fittings — Fittings are used in pipe and plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, and to regulate fluid flow, for example. Fittings, especially noncommon types, can be expensive, and require time,… … Wikipedia
screw coupling — noun : an internally threaded sleeve nut that usually has right and left threads and is used for coupling (as rods or pipes) … Useful english dictionary
Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
Laboratory glassware — Three beakers, a conical flask, a graduated cylinder and a volumetric flask … Wikipedia
