This article uses material from the Wikipedia article "Barrel nut", which is released under the Creative Commons Attribution-Share-Alike License 3.0.
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\nA barrel nut (also known as steel cross dowel or dowel nut) is a specialized nut, and is commonly used in aerospace and ready-to-assemble furniture applications.
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\nIt is used to bolt thin sheet metal parts to larger, often billet or forged, parts. The barrel nut is a round slug, or formed sheet metal part with threads perpendicular to the length of the nut. The nut sits in a hole inside the forging and a standard bolt is threaded into the barrel nut from outside the sheet metal. They are preferred over a standard nut and bolt, because they do not require a flange to be machined or forged onto the receiving part, thus reducing weight.
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\nFurniture cross dowel barrel nuts are cylindrical shaped metal nuts (metal dowels) used with furniture connector bolts to join two pieces of wood. The inside threaded hole is unusual in that it passes through the sides of the dowel. To install, the pieces of wood to be joined are aligned, then a bolt hole is drilled through one piece of wood and into the other. A dowel hole is drilled laterally across the bolt hole and the cross dowel is inserted into it. The end of the cross dowel is slotted so that a screwdriver can be inserted to rotate the dowel so that its threaded shaft aligns with the bolt hole. The furniture connector bolt is then inserted into the bolt hole and screwed into the cross dowel until the wood pieces are held tightly together.
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\nBarrel nuts are also common in flat-pack furniture, where long bolts and barrel nuts are used to hold together T joints in chipboard sheets.
Fasteners like nails, screws and nuts and bolts are a fundamental and essential part of the construction process irrespective of whether the project involved is a minor home DIY task or a large-scale professional undertaking. One of the functions of fasteners is to hold two surfaces together in a firm and lasting manner although fastening with hardware like nuts and bolts is not the only way to accomplish this. Objects can also be affixed by means of welding joins, glue and cement, for instance, depending on the circumstances involved.
\nA bolt is basically a screw with a blunt end instead of a sharp one. Both of these types of fastener have a 'thread' which is essentially a raised ridge winding in a spiral around the shank of the bolt or screw. The main difference between them, however, is the fact that a bolt is invariably accompanied by a nut to function effectively. The nut typically also has a thread which allows it to be twisted onto the bolt so that the two adjacent surfaces that require joining are squeezed between the nut and the bolt head and thus held together.
\nHowever, even though nuts and bolts stay together through a combination of interlocking threads and torque it is possible for grip of the pair to loosen over time even though the nut was originally properly tightened. Fortunately, it is possible to remedy this by using smooth metal discs called 'washers'. Washers provide a smooth surface for the nut or bolt head to grip and can help to distribute pressure evenly.
\nWith regards to the design of nuts and bolts, there is a type of nut in existence known as the 'wingnut' which literally has a wing on either side that resemble tiny Mickey Mouse ears. The purpose of these 'ears' is to allow the nut to be tightened using the fingers and are very useful in instances where they may need to be loosened again on occasion. Then there is the 'acorn nut' which was obviously designed by someone with a sense of humor. This aptly named gizmo has a dome on the one end that covers the end of the bolt and is used for decorative purposes, among other reasons. The 'coupling nut', on the other hand, is open on both ends, as many fastening nuts are, but it is much longer than normal and is used to join the threaded ends of two sections of rod together.
\nOn the subject of bolt heads, there is the 'hex' bolt which is instantly recognizable by its hexagonal shape and the 'coach' bolt which are both common styles of bolt head. Some bolts do not have a head as such because the shank is curved or angled to form two ends which may or may not be threaded to take nuts, depending on the design. These curved bolts are typically named after the letter of the alphabet they resemble such as 'U' or 'J'.
\nIn conclusion, there are numerous other types of nuts and bolts in existence but they are too many and varied to describe here suffice it to say that these kinds of fasteners are very handy indeed.
\nFor more information about nuts and bolts visit the website www.eurekadiy.ie.
\nArticle Source: https://EzineArticles.com/expert/Petro_Solt/852757
"},"date":1610884800000,"introduction":"Fasteners like nails, screws and nuts and bolts are a fundamental and essential part of the construction process irrespective of whether the project involved is a minor home DIY task or a large-scale professional undertaking.","image":{"type":"resource","id":"7798cc71-0828-47c4-a62b-cf386bf64630","path":"/channel-templates/referencespa/articles/fastening.png","name":"fastening.png","namespace":"xm","contentType":"image","mimeType":"image/png","lastModified":1602703035479,"size":2644496,"height":846,"width":1280,"links":{"self":{"href":"https://developers.bloomreach.io/delivery/site/v2/images/7798cc71-0828-47c4-a62b-cf386bf64630"},"resource":{"href":"https://developers.bloomreach.io/delivery/resources/content/gallery/channel-templates/referencespa/articles/fastening.png"}},"fields":{}},"title":"The Nuts And Bolts Of Fastening"}},{"id":"30e59ff8-5d76-445c-a670-dbd2f5c0e2e7","path":"/brxm-development/content/articles/what-is-a-nut","name":"What is a nut?","locale":"en_US","namespace":"referencespa","contentType":"content","lastModified":1602703178970,"links":{"self":{"href":"https://developers.bloomreach.io/delivery/site/v2/documents/30e59ff8-5d76-445c-a670-dbd2f5c0e2e7"}},"translations":[],"fields":{"content":{"value":"This article uses material from the Wikipedia article "Nut (hardware)", which is released under the Creative Commons Attribution-Share-Alike License 3.0.
\nA nut is a type of fastener with a threaded hole. 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.
\nIn applications where vibration or rotation may work a nut loose, various locking mechanisms may be employed: lock washers, jam nuts, specialist adhesive thread-locking fluid such as Loctite, safety pins (split pins) or lockwire in conjunction with castellated nuts, nylon inserts (nyloc nut), or slightly oval-shaped threads.
\nSquare nuts, as well as bolt heads, were the first shape made and used to be the most common largely because they were much easier to manufacture, especially by hand. While rare today[when?] due to the reasons stated below for the preference of hexagonal nuts, they are occasionally used in some situations when a maximum amount of torque and grip is needed for a given size: the greater length of each side allows a spanner to be applied with a larger surface area and more leverage at the nut.
\nThe most common shape today is hexagonal, for similar reasons as the bolt head: six sides give a good granularity of angles for a tool to approach from (good in tight spots), but more (and smaller) corners would be vulnerable to being rounded off. It takes only one sixth of a rotation to obtain the next side of the hexagon and grip is optimal. However, polygons with more than six sides do not give the requisite grip and polygons with fewer than six sides take more time to be given a complete rotation. Other specialized shapes exist for certain needs, such as wingnuts for finger adjustment and captive nuts (e.g. cage nuts) for inaccessible areas.
\nA wide variety of nuts exists, from household hardware versions to specialized industry-specific designs that are engineered to meet various technical standards. Fasteners used in automotive, engineering, and industrial applications usually need to be tightened to a specific torque setting, using a torque wrench. Nuts are graded with strength ratings compatible with their respective bolts; for example, an ISO property class 10 nut will be able to support the bolt proof strength load of an ISO property class 10.9 bolt without stripping. Likewise, an SAE class 5 nut can support the proof load of an SAE class 5 bolt, and so on.
"},"date":1610712000000,"introduction":"A nut is a type of fastener with a threaded hole.","image":{"type":"resource","id":"c7545b99-b350-4942-84ff-c2b6753a969e","path":"/channel-templates/referencespa/articles/what-is-a-nut.png","name":"what-is-a-nut.png","namespace":"xm","contentType":"image","mimeType":"image/png","lastModified":1602703034848,"size":3095528,"height":846,"width":1280,"links":{"self":{"href":"https://developers.bloomreach.io/delivery/site/v2/images/c7545b99-b350-4942-84ff-c2b6753a969e"},"resource":{"href":"https://developers.bloomreach.io/delivery/resources/content/gallery/channel-templates/referencespa/articles/what-is-a-nut.png"}},"fields":{}},"title":"What is a nut?"}},{"id":"511c7616-b893-40af-951e-04b680ec73e6","path":"/brxm-development/content/articles/build-your-own-chess-set-from-nuts-and-bolts","name":"Build Your Own Chess Set From Nuts and Bolts","locale":"en_US","namespace":"referencespa","contentType":"content","lastModified":1602703526342,"links":{"self":{"href":"https://developers.bloomreach.io/delivery/site/v2/documents/511c7616-b893-40af-951e-04b680ec73e6"}},"translations":[],"fields":{"content":{"value":"Did you know you can easily make a chess set from nothing but nuts and bolts? Simply stand each lag bolt on its end and decorate it to match the similar pieces on a traditional chess board. Just be creative and use different types of bolts with different heads such as a machine screw, carriage bolt, or lag bolt. There are several simple steps to take to build your own chess set.
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\nIdentify what color you want each side to be. You may use different bolts plated with different steel, such as zinc lag bolts, or galvanized carriage bolts, or you can just go with stainless steel. Consider using something that is plain and small for the pawns. After all the pawns are the weakest on the board!
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\nUsing bolts that are larger in size will help to distinguish between some of the larger chess pieces, like the queen and the king. One creative way to build a knight would be to use a hook screw, (you know, the kind that you hang plants from the ceiling at home). You can use a square head lag bolt for rooks, this will give a good effect to the chess piece as they can only move backward, forward, and side to side.
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\nUse some of your creativity for the queen, and use a cap nut. Cap nuts have a rounded top and can really differentiate it between all of the other pieces. Finally you are ready to build the king. You will want to use a lock nut for the head, and a tall big lag bolt. The lock nut that I refer to is often called a k locknut, you can also attach washers with big teeth for the look of a crown.
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\nJust a couple more tips and you'll be on your way to building your own chess set from just nuts and bolts. Remember to not get bolts that are too top heavy as they may fall down. Try to test the bolts before you roll out the finished product, as you may need to cut them so they are shorter. So there you have it, simple instructions on how to build your own chess set.
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\nAt Pacific Nuts and Bolts we are your source for galvanized carriage bolts, lag bolts and other assorted nuts and bolts. http://www.Wholesalebolts.com is located in the central United States to help you find the best steel prices. Tyler Brown is a freelance writer.
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\nArticle Source: https://EzineArticles.com/expert/Tyler_K_Brown/508772
Graphite low friction coatings for fasteners, nuts and bolts? The answer is yes. And for a number of reasons.
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\nBegin with installation. Did you know most applied torque goes into overcoming friction? That is right. In the absence of lubrication, clamping pressures can be lost, measurably. Not to mention the difficulty in installation. Or the potential damaging torque applied. All of which can initiate issues such as loosening, galling or early wear, or something catastrophic, like bolt shearing.
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\nIs it the fault of the fastener? Not necessarily. So, the next time you consider changing to a more expensive fastener grade, consider lubrication instead. Friction will be lower, as will be torsional stress.
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\nDry film lubricants like graphite can play a significant role when vibrations are strong, dynamic loads are high. Without, friction will be higher, failure imminent.
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\nConsider microscopic movement under these "oscillating" conditions. More than tangential movement, surfaces can lose contact in each cycle. The result can be a devastating, hammering effect, impact fatigue. Though all these effects can be reduced with carbon graphite.
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\nSimilar to molybdenum disulfide (MoS2) and tungsten disulfide (WS2), the structure of carbon graphite is also one of a layered lattice, a hexagonal form with strong covalent bonds. In a normal air atmosphere condition, where metal fasteners are similar material, lubrication can be exceptional. (When nut and bolt are dissimilar metal, an electrical potential exists; consequently, MoS2 or WS2 are better suited. Since graphite can be associated with stimulating galvanic corrosion.)
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\nSo, next time you experience failure of your fasteners. First, check for lubrication. And the next time you design with nuts and bolts, do not forget the lubrication. Benefits are many using graphite low friction coatings.
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\nWant more information? Need help with your surface engineering? Stop searching. Start finding.
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\nArticle Source: https://EzineArticles.com/expert/William_Gunnar/133730
Bolts and nuts are the common types of the fasteners which are used in almost every industry. They are widely used in chemical, acidic, construction, manufacturing industries. The bolts and nuts are the threaded fasteners which are used together to hold two pieces of any material at one place. However, at the time of the selection you need to be more careful because it is the basic element of any structure. There are many factors that affect the working efficiency and life of the fasteners. The key to success relies on finding the metals which are good resistant of heat, acid, and corrosion.
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\nVarious Factors Affecting The Efficiency Of Bolts And Nuts:
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\nTemperature - Various industries have heavy duty machines that heat up in the normal operation of the production. And while carrying operational process, it releases heat and works on high temperature. The low-quality fasteners are the reason of failure or incidents. A small change in the temperature reacts with the low-quality metal and corrodes with a fraction of the time. The high-quality fasteners, on the other hand, are high-temperature resistant and works efficiently even in such conditions without getting affected. You can also use cleaning and drying method to keep the damp nuts and bolts dry.
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\nConcentration Of Acid - The acids are harmful and highly reactive when they come in the contact of metals. The bolts and nuts fixed at the joints or inside worsen the condition after getting affected from the harmful effects of the chemicals. Some acids are really damaging while others are highly corrosive in nature. The concentration of the acid matters most in the chemical industries. The diluted ones are highly corrosive in nature and high-quality fasteners can withstand the situations.
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\nCorrosion - The metals are highly corrosive under the heat conditions. The acids are highly corrosive in nature and it can react with the metal used in the manufacturing of Hex nuts and bolts. Corrosion has three types - General, Galvanic and Caustic Agent Corrosion. You need to select such type of the fasteners for your industries which gives material protection from such types of the rusting.
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\nCheck whether the fasteners you buy can withstand these three factors and also look at the specifications of the fasteners carefully before buying them and always buy such important element of the industry from the leading hex bolt manufacturers who ensure protection from these three problems.
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\nLooking for Hex Bolt Manufacturers in India, then Swarna Fasteners is the right choice. A well known Spring Washer Manufacturers and suppliers from Delhi.
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\nArticle Source: https://EzineArticles.com/expert/Sidharth_Jain/2323921
Because they typically employ numerous workers, contractors frequently have problems with quality control. Since employees have varying levels of strength, bolts and screws are often tightened differently, which leads to non-uniform results that can cause structural troubles, as well as aesthetic issues. Additionally, if they are using traditional screwdrivers, workers sometimes accidentally strip screws and warp the corners of bolts, especially when they grow fatigued at the end of a long day. To prevent these types of problems, many contractors utilize torque tools, which contain internal mechanisms that promote uniform results and minimize the risk of accidental damage.
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\nWorking without torque tools
\nBecause torque instruments cost more than traditional tools, many contractors try to get by without them. Often, this leads to structural imperfections and other problems. When the heads break off screws, removal can be difficult. The same hold true when bolts are stripped or over-tightened. In the end, although these tools cost more, they often help contractors save money by encouraging worker productivity and preventing costly breakage. Additionally, because tools are usually tax-deductible, they are typically a wise investment for contractors that frequently employ numerous workers to complete a single project.
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\nScrewdrivers
\nThere are a variety of electric screwdrivers that utilize torque to make building and assembly easier. The common torque screwdriver is useful for building and construction projects, while the pneumatic screwdriver is generally preferred for assembly. Whatever their purpose, these tools all have two things in common: first, they encourage uniformity by allowing users to predetermine torque limits; second, they have an internal clutch that disengages once the screwdriver meets predefined torque limits. The latter trait helps to avert stripping by preventing the user from over-tightening.
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\nWrenches
\nTorque wrenches are very similar to torque screwdrivers, except they are intended for use with nuts and bolts. Often, these instruments resemble typical socket wrenches; however, they contain internal mechanisms that prevent over-tightening by eliminating torque once preset levels have been reached. Additionally, because they make tightening easier, these tools help promote efficiency, while reducing worker fatigue.
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\nMeters
\nTorque meters are especially valuable where numerous workers are engaged in a single project. By attaching torque tools to the meter, workers are able to ensure that each and every screwdriver and wrench is calibrated the same. This aids quality control by ensuring that every bolt and screw is tightened appropriately, regardless of which worker is performing the task. This is especially important for large-scale projects involving numerous workers of varying sizes and ages.
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\nArticle Source: https://EzineArticles.com/expert/Eddie_Silverberg/391383
When it comes to identifying or classifying a fastener there are a number of key attributes that are used. The main attributes used in identify fasteners include fastener type(ex: drive type, head type), material(ex: stainless steel, zinc plated steel, etc), fastener diameter, length and thread count also referred to as pitch count.
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\nFastener types
\nThere are many types of fastener types that include everything from a machine screw to carriage bolts to lag bolts and eye bolts. Each fastener type usually has specific application(s) that it is designed for although many are used universally. Head styles also greatly differ from flat head, which has a flat top with countersunk head to a hex head which has a hexagonal head, this head type is often abbreviated as HH or HX. Just like fastener types the head types are ideal in certain applications and uses and some can often be fairly universal.
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\nFastener Materials
\nLike fastener types there are various fastener materials used for specific applications. Steel is by far the most common of fastener materials which comes in various grades based on strength from Grade 2 to Alloy steel, the strongest of steel materials. Stainless steel is also very popular because of its resistance to corrosion.
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\nIn addition to steel and stainless steel fasteners there are silicone bronze also plainly called bronze, brass and aluminum fasteners, each having their own characteristics ideal for certain conditions and applications.
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\nFastener Diameter
\nWhen measuring the diameter of a fastener there are several different locations in which one can measure. The three most common used to measure diameters are the thread diameter, shank diameter and root diameter. Typically the thread diameter is used to determine diameter which is also known as the major diameter. Some people refer to hex bolts by the size of the head measured across the flats but this should be avoided for two primary reasons. One this can cause miscommunication and getting a larger bolt than needed and also the head size can vary.
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\nFastener Length
\nThe length of a fastener and how it is measured is usually determined by the head of the fastener. Generally the length is measured from the surface to the end of the fastener, however for fasteners that have a head that site above the surface like hex bolts the measurement is from directly under the head to the end of the fastener. For fasteners like flat head screws the fastener is measured from the point on the head where the surface of the material will be to the end of the fastener.
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\nThread/Pitch Count
\nThread or pitch count as it is also referred to is only used on fasteners that have machine thread which means they take a nut or thread into a tapped hole. The thread count simply says how fine or close together the threads of the fastener are.
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\nIn general, these 5 features are used to identify a screw. So the next time your are looking for a specific fastener or aren't sure which is right be sure to remember the 5 ways to identify a fastener.
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\nThere are so many different types of fasteners with so many names and sizes that it can be confusing about what kind you are talking about. This short article explains the key characteristics used to identify types of fasteners. Check out http://www.asmc.net for more information.
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\nArticle Source: https://EzineArticles.com/expert/Alex_Schubow/1903637
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