what are bolts and nuts used for?
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Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads' friction (with slight elastic deformation), a slight stretching of the bolt, and compression of the parts to be held together.
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An anchor bolt is used to attach objects or structures to concrete. They all consist of a threaded end, to which a nut and washer can be attached for the external load. Anchor bolts are used to secure light poles, structural beams or other equipment to the poured concrete surface.
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In rock climbing, a nut (or chock or chockstone) is a metal wedge threaded on a wire and is used for protection by wedging it into a crack in the rock. Quickdraws are clipped to the nut wire by the ascending climber and the rope threads through the quickdraw.
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They come in a variety of sizes and types for wood, metal, drywall and even concrete applications. Bolts provide the best holding strength compared to screws and other fasteners. Thanks to their threads, bolts can provide an unparalleled level of holding power. ... Compared to screws, bolts can be easier to remove.
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Lug nuts (or lug bolts) have one of the most important jobs on a vehicle, to keep your wheels and tires secured to your vehicle. While there is no universal lug nut size, there are fortunately only about ten or so thread sizes and pitches that make up a lug nut's size. The most common lug nut sizes are: 10mm x 1.25.
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Screw threads are "V"-shaped inclined planes cut into material to join pieces of material together. A hex head bolt and hex nut could hold two pieces of metal together, while a threaded pipe could join a pipe and elbow together.
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Self-tapping screws are typically used to secure wood, plastic, metal and brick together. There are two types of self-tapping screws, thread-forming and thread-cutting. Thread-forming: Before you can use these screws you will need to drill a pilot hole as the screw itself does not contain a pointed tip.
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Bolt Cutters. Bolt croppers are designed for cutting wire, chains, padlocks and bolts. Most bolt cutters have hardened steel adjustable jaws. Originally a bolt cropper was used to cut bolt seals from shipping containers at the delivery point.
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Self-tapping screws are ideal for drilling into metal and other hard materials, but are not useful for soft materials — such as wood — that require the screw to force a path into the material for increased holding strength. Self-tapping screws are more dependable for installing into stone or brick.
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Explanation : The die nut is used for chasing or reconditioning the damaged threads.
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Torx were designed to allow the screw to be tightened as far as possible. They exist because people wanted a head that would be more resistant to having the screwdriver spin out.
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fastening device Hardened and precisely shaped dowel pins are used to keep machine components in accurate alignment; they are also used as location guides for adjacent machine parts and to keep the two sections of a punch and die in alignment.
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Bolts can come in a wide range of different sizes and shapes, but the basic production process generally remains the same. It starts with cold forging steel wire into the right shape, followed by heat treating to improve strength and surface treating to improve durability, before being packed for shipment.
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Screws and bolts are usually made of steel. Where great resistance to weather or corrosion is required, like in very small screws or medical implants, materials such as stainless steel, brass, titanium, bronze, silicon bronze or monel may be used.
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Anchor bolts are used to connect structural and non-structural elements to the concrete. The connection is made by an assembling of different components such as: anchor bolts (also named fasteners), steel plates, stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces.
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Because the washer largely returns to its original form, nylon insert lock nuts may be reused a limited number of times. ... However, their "locking" feature does resist loosening without the nuts being seated, which allows them to be used as stop nuts or spacers for rotating or other components.
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HSFG bolts are also commonly used in structures that will be exposed to a lot of vibrations, or loadings that will reverse. Since the bolts are preloaded the tension in the bolt doesn't vary as much as in a standard bolt, so they don't fatigue as quickly.