Screw Fastener
Fasteners being a tool that silently influences our lives. Occasionally simple and sometimes complex, these unsung heroes make our world go round, and is practiced for the number of years.
Beginning with the screw, a fastener that keeps the roof over our heads and the floor under our feet. The screw thread is accepted to have been invented around 400 BCE, by Archytas of Tarentum, a Greek philosopher sometimes called “the father of mechanics.” The general principle of the screw was applied early on, in cities like Pompeii, to withdraw olive oil and grape juice. It was to a greater range developed by the Greek mathematician Archimedes to change water levels. The water screw, first introduce in Mechanica of Heron of Alexandria, was made from wood and assisted with farm irrigation and rid ships of taking in water.
Screw Fasteners –
In 1568, Jacques Besson, a French inventor, designed the bolt and screw the giving rise to the machine. He also built a screw-cutting plate for use with lathes, which was later improved and put into wider circulation by the English company, Hindley of York. In the eighteenth century, screws confirm again when Antoine Thiet, a French clockmaker, regarded a screwdriver to a lathe, authorizing tool carriages to move semi-automatically.
No one quite sympathizes with the beginning of nuts and bolts, though we believe they came after the screw thread. The thing we know is that they came into eminence during the Industrial Revolution and their most noteworthy procedure of innovations have materialized in the last 150 years. By providing an illustration, the U.S. Standard Thread was established in the early 1870s, followed by the Society of Automotive Engineers (SAE) standard, and so on. By the late 1960s, self-drilling screws, publicized as “pinched point” or “cold forged” self-drills that cut down labor time and costs, were gaining a footing in the metal building industry.
Fast forward to the last twenty years, and fastener design expansions have proceeded even faster, thanks to the establishment of nickel-based alloys. Unlike steel, Nickel-based alloys can hold on to their form in high-temperature environments like those in engines and turbochargers. Engineers seek to continue fastener development by learning what’s possible with lightweight metal bolts assemble from materials like magnesium, titanium, and aluminum.
They’ve been with us for a long time, and only more time will tell how we will carry on to develop together. Considering by some that the screw thread was invented in about 400BC by Archytas of Tarentum (428 BC – 350 BC). Archytas is sometimes called the founder of mechanics and was a present of Plato. One of the first applications of the screw principle was in presses for the extraction of oils from olives and juice from grapes. The oil presses in Pompeii were worked by the screw principle.
Archimedes (287 BC – 212 BC) evolve the screw principle and used it to construct devices to raise water. The water screw may have derived in Egypt before the time of Archimedes. It was built from wood and was utilized for land irrigation and to remove bilge-water from ships. The Romans applied the Archimedean screw to mine effluent. The screw as described in the first century AD in Mechanica of Heron of Alexandria.
The construction of the screw thread relied upon the eye and skill of the craftsman. Advances on this had taken place in the eighteenth century. Screws with fine pitches are essential in a wide variant of instruments – such as micrometers. To build such a thread a lathe was prerequired. Jesse Ramsden in 1770 made the first satisfactory screw-cutting lathe. Utilizing his lathes a long screw cut be cut from a carefully cut small original. Exact screws allowed accuracy instruments to be made to allow the raising of steam engines and machine tools.
One of the first appliances of the screw principle was in presses for the extraction of oils from olives and juice from grapes. The oil causing in Pompeii was worked by the screw principle.
But dig a bit deeper and you’ll realize there’s more behind apparent prominence of bolt and screws than first met the eye. Without them, all our gadgets and machines would fall to pieces.
Screws are used to fasten materials by A screw is a merger of simple machines—it is, in essence, an inclined plane wrapped around a central shaft, but the inclined plane (thread) also comes to a sharp edge around the outside, which acts a wedge as it pushes into the fastened material, and the shaft and helix also form a wedge in the form of the point. The screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The most common uses of screws are to hold objects together and to position objects.
A wood screw: a) head; b) non-threaded shank; c) threaded shank; d) tip.
A screw will usually have a head on one end that allows it to be turned with a tool. Common tools for driving screws include screwdrivers and wrenches. be driven. Set screws often have a head smaller than the outer diameter of the screw. Headless set screws are also called grub screws. J-bolts have a J-shaped head that is not designed to be driven but rather is usually sunk into concrete allowing it to be used as an anchor bolt.
The majority of screws are tightened by clockwise rotation, which is termed a right-hand thread; a common mnemonic device for remembering this when working with screws or bolts is “righty-tighty, lefty-loosey”.
More generally, the screw may mean any helical device, such as a clamp, a micrometer, a ship’s propeller, or an Archimedes’ screw water pump.
Whether or not we realize it, we use items that contain screws every day. From the micro screws in our smartphones to the large bolts holding up bridges, these fasteners are responsible for holding together many gadgets we often take for granted.
The Origins of Screws
The very first origins of screws are somewhat up for debate, but we do know that wooden screws were used during the first century B.C. throughout the Mediterranean region.
It wasn’t until the late-1700s that mass production of screws was made possible. Instrument maker Jesse Ramsden invented the first screw-cutting lathe in 1770, which inspired subsequent inventors to create machinery for mass production of the screw.
In the early 1900s, different types of screw heads came about. The Robertson screw, which features a square head, was invented in 1908 and was favored for its non-slip qualities during installation.
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Screws in the 21st Century
Many other types of screws have been introduced since, including the tiny screws we often see in our favorite technological gadgets, like iPhones and laptop computers. And in the age of smart manufacturing, new types of screws are able to be created all the time to meet the need of time to meet the need for custom screws and fasteners. Screws are used to fasten two objects together. A screwdriver is a tool for driving (turning) screws; screwdrivers have a tip that fits into the head of a screw.m, even if we don’t always realize they’re there at all.
The Evolution of the Screw and Screwdriver
A screw is any shaft with a corkscrew-shaped groove formed on its surface. Screws are used to fasten two objects together.
Early Screws
Early screws were made from wood and were used in wine presses, olive oil presses, and for pressing clothes. Metal screws and nuts used to fasten two objects together first appeared in the fifteenth century.
In 1770, English instrument maker, Jesse Ramsden (1735–1800) invented the first satisfactory screw-cutting lathe and went on to inspire other inventors. In 1797, Englishman Henry Maudslay (1771–1831) invented a large screw-cutting lathe that made it possible to mass-produce accurately sized screws.
Robertson Screw
A square-drive head on a screw is an improvement over the slot head because the screwdriver will not slip out of the screw’s head during installation. The early 20th century Model T car made by the Ford Motor Company (one of Robertson’s first customers) used over seven hundred Robertson screws.
Phillips Head Screw and Other Improvements
In the early 1930s, the Phillips head screw was invented by Oregon businessman Henry Phillips (1889–1958). Automobile manufacturers now used car assembly lines. They needed screws that could take greater torque and could provide tighter fastenings.
In 1744, the flat-bladed bit for the carpenter’s brace was invented, the precursor to the first simple screwdriver. Handheld screwdrivers first appeared after 1800.
Types of Screws
Myriad types of screws have been invented to perform specific tasks.
The wood screw has a tapered shaft allowing it to penetrate the undrilled wood.
A drywall screw is a specialized self-tapping screw with a cylindrical shaft that has proved to have uses far beyond its original application.
The double-ended screw is a wood-screw with two pointed ends and no head. It is used for making hidden joints between two pieces of wood.
Types of Screw Drivers
A variety of tools exists to drive screws into the material to be secured. The hand-tool for driving cap screws and other types is known as a spanner. Slot head screws are operated by a flat-bladed screwdriver.
The Pozidriv is an enhanced Phillips head screw, and it has its own screwdriver, similar to cross-head but with better resistance to slipping, or cam-out.
Hexagonal or hex screw heads have a hexagonal hole and are driven by a hexagonal wrench, at times known as a powerful tool with a hexagonal bit.
Torx head screws have a splined socket and receive a driver with an exemplary shaft.
Tamper-proof Torx’s drive sockets have a projection to stop a standard Torx driver being inserted.
Nuts
Nuts are square, round, or hexagonal metal blocks with a screw thread on the inside. This article provides information on screw types.
Screw Composition
Screws are metal fasteners that have a threaded shank, which is driven by turning.
The head of the screw has a recessed area that accepts a tool, such as a drill or a screwdriver, which turns the screw into place.
The threads are the helical ridges along the screw, which provide the grating that keeps both the materials together.
Screws are usually made from low to medium carbon steel wire, through this material can be mainly substituted for other low price metals, such as brass, nickel alloys, and an aluminum alloy.
How Screws Are Made: Custom Screws and Traditional
Talking a much about the various types of custom screw options that we have available, from our micro screws to our custom shoulder bolts.
Bringing into existence a custom screw the size of a micro screw, or a strong and durable Delta PT screw might seem very difficult.
How Screws Are Made: Starting Out
Screws are generally made from low to medium carbon steel wire, through this material can be applied for various other inexpensive metals, such as brass, nickel alloys, and an aluminum alloy.
The Manufacturing Process: Basics
Screws are manufactured by using a numerous variety of methods, and smaller screws or screws with unique designs can only be made by the “machining” process. The machining procedure is exact, time-consuming, and more expensive than the process to make other screw types.
We’ll start with thread-rolling.
Thread Rolling
The process commences with “cold-heading,” in which a wire is fed through a pre-straightening machine. The straightened wire is then cut into nominated lengths, and then the head is cut into a preprogrammed shape.
After this is done the blank screws are fed to thread-cutting machines, being accurately ordered to make sure they’re in the right position to be fed in.
Machining: Custom Screws
The procedure for a custom screw is very alike in that it has a lot of the same fundamental, only it needs for a particular more costly machinery in order to screw the inequality in screws.
While you now know the basics of how to screw manufacturing works, there is a lot more to it than this. Hopefully, you have a widespread idea of the process and how we create our custom screws.
Screws are a segment of a family of threaded fasteners that includes bolts and studs along with limited screws like carpenter’s wood screws and the automotive cap screw.
Screws are part of a family of threaded fasteners that instill bolts and studs as well as skilled screws like carpenter’s wood screws and the automotive cap screw. There are two substitutes of screws, machine and wood screws.
Screws are a fragment of a family of threaded fasteners that understands bolts and studs as well as specialized screws like carpenter’s wood screws and the automotive cap screw.
History
SPECIFIC TYPES OF FASTENERS AND ITS USES:
Screws:
• Just like bolts, screws to are threaded lengths of rods build of steel with a head on one end
• The screw heads shall be slotted, square, cross slotted or hexagonal
• Types of screws encompassed Slotted Flathead, Slotted Roundhead, Slotted Oval Head, Phillips Drive, and Square Drive.
1. Screws
Screws are one of the outstanding fasteners that are widely ideally for utilization in prominent appliances commences from small box building to major automobile works.
Top utilization of Screw Fasteners –
• 1) Many of the workman’s tools we utilize today were invented during the Roman Age or even prior.
• Rybczynski travel through the histories of several other tools such as the saw, the plane, the chisel, and the level. He finds that all of these tools were originate during the Roman age if not prior. The chisel, by giving an illustration, dates from the Bronze Age.
• 2) The threading on a screw forms the shape of a helix, not a spiral.
• This is a common mistake. Rybczynski writes, “A spiral is a curve that winds around a fixed point with a continuously increasing radius. A helix is a three-dimensional curve that twists on every side of a cylinder at a sustained favorably disposed angle”.
• 3) The screw firsts appear in machinery during the time of the Ancient Greeks when screws were used in presses of various kinds.
• Screws were first utilized in olive presses and grape presses. In the Middle Ages, this mechanism was altered for utilization in the printing press and the paper press. The screw mechanism allows for enormous force to be applied to the object being pressed with minimal effort. By giving an illustration, imagine a press whose large screw has a pitch of one inch and which is turned by means of a handspike three feet long. A pressure of only 40 pounds on the handspike will apply a pressure of more than nine thousand pounds on the olives or grapes.
• 4) Some of the earliest screws to be used as fasteners were used in military weapons.
• By giving an illustration, screws were widely used in putting firearms jointly in the early 16th century. The threads offer a snugger fit that could survive the vibrations from the firing gun. Screws were also widely used in assembly armor. When screws are pressed into metal their threads must be fairly accurate in order to fit properly into the receiving threads. These screws were created by first hammering out ahead and shank and then cutting the thread using a die called a screw plate.
• 5) Screws were to begin with used as fasteners for fixing two relatively thin pieces of material together.
• Nails are more constructive when they are extended. Even a tiny screw when properly fixed will remain forever fixed. To detach a screw without a screwdriver, one actually has to cut away the surrounding material.
• 6) Although screws were in utilization as fasteners by the mid-fifteenth century, factory constructions of screws didn’t start until the mid-1700s.
• As a screw constructor, it’s hard to imagine screws being sculptured by hand. Whole families exactly worked day and night to file threads and pierce slots in the heads of the screws. In England, blacksmiths delivered large quantities of nails created with heads to families who then cut a slot in the head and laboriously filed the threading by hand. Not surprisingly, this monotonous labor constructed poor results-the the screws were uneven with shallow threads.
Encouraged by earlier designers and creators of scientific instruments like microscopes, clockmakers and gunsmiths led the way in screw-cutting machine design. In 1760, Job and William Wyat, two English brothers, filed a patent for the first automatic screw-cutting lathe and was awarded the first American screw patent. New innovations followed soon after.
The first screw factory, Abom, and Jackson were unfastened in Rhode Island in 1810. By 1895 screw makers in America were forming unions and demanding a minimum wage of $ 1.75 per ten-hour day for a member and $1.25 for a learner.
Today, machining of screws has been replaced by thread rolling. In 1836, American William Keane discovered the thread rolling procedure, but at the time it had little success. The iron metal that was utilized to create the thread-rolling screws was to low grade and had the tendency to split during the die-cutting process. The eventual need to mass-produce screws at a fraction of the cost of machining led to reevaluation and establishment of the thread-rolling manufacture of screws.
Raw Materials –
Screws are generally created from low to medium carbon steel wire, but other tough and inexpensive metals may be substituted, such as stainless steel, brass, nickel alloys, or aluminum alloy. The quality of the metal used is of utmost importance in order to avoid cracking.
Design –
On a single thread screw, the lead and pitch are similar, lead is twice the pitch on a double thread model, and three times as much on a triple threat. The pitch of a screw is the distance between two threads (or grooves) from the same point on each thread.
The Manufacturing Process –
Machining is only used on unique designs or with screws too small to be made any other way. The machining process is exact, but too time-consuming, wasteful, and expensive.
Cold heading –
. 1 Wire is fed from a mechanical coil through a pre straightening machine. The heading machine utilizes either an open or closed die that either requires one punch or two punches to create the screw head.
Thread rolling –
. 2 Once cold headed, the screw blanks are automatically fed to the thread-cutting dies from a vibrating hopper. The blank is then cut using one of the three techniques. In the reciprocating die, two flat dies are used to cut the screw thread.
All three methods create higher quality screws than the machine-cut variety. Thus no metal material is lost, and weakness in the metal is avoided. The threads are also more precisely positioned.
Top Uses of Screw Fastener –
Screws are metal fasteners that have a threaded shank, which is driven by turning. The threads prevent the screw from pulling out.
Uses:
Ranging from the usual household appliances we have used in our everyday life to some high tech gizmos, we have a common constituent present in them, that’s a fastener.
SPECIFIC TYPES OF FASTENERS AND ITS USES:
Screws:
• Just like bolts, screws to are threaded lengths of rods build of steel with a head on one end
• The screw heads shall be slotted, square, cross slotted or hexagonal
• Types of screws encompassed Slotted Flathead, Slotted Roundhead, Slotted Oval Head, Phillips Drive, and Square Drive.
1. Screws
Screws are one of the excellent fasteners that are widely preferable for use in significant applications starting from small box building to major automobile works.
Top uses of Screw Fasteners –
• 1) Many of the workman’s tools we use today were invented during the Roman Age or even before.
• Rybczynski explores the histories of several other tools such as the saw, the plane, the chisel, and the level. He discovers that all of these tools were invented during the Roman age if not before. The chisel, for example, dates from the Bronze Age.
• 2) The threading on a screw forms the shape of a helix, not a spiral.
• This is a common mistake. Rybczynski writes, “A spiral is a curve that winds around a fixed point with a continuously increasing radius…A helix…is a three-dimensional curve that twists around a cylinder at a constant inclined angle” Spiral staircases form helixes, not spirals.
• 3) The screw firsts appear in machinery during the time of the Ancient Greeks when screws were used in presses of various kinds.
• Screws were first used in olive presses and grape presses. In the Middle Ages, this mechanism was modified for use in the printing press and the paper press. The screw mechanism allows for enormous force to be applied on the object being pressed with minimal effort. By giving an illustration, imagine a press whose large screw has a pitch of one inch and which is turned by means of a handspike three feet long. A pressure of only 40 pounds on the handspike will exert a pressure of more than nine thousand pounds on the olives or grapes.
• 4) Some of the earliest screws to be used as fasteners were used in military weapons.
• By giving an illustration, screws were widely used in putting firearms together in the early 16th century. The threads provided a snugger fit that could survive the vibrations from the firing gun. Screws were also widely used in assembly armor. When screws are pressed into metal their threads must be fairly accurate in order to fit properly into the receiving threads. These screws were created by first hammering out ahead and shank and then cutting the thread using a die called a screw plate.
• 5) Screws were, to begin with, used as fasteners for fixing two relatively thin pieces of material together.
• Nails are more effective when they are longer. Even a tiny screw when properly installed will remain forever fixed. To remove a screw without a screwdriver, one actually has to cut away the surrounding material.
• 6) Although screws were in use as fasteners by the mid-fifteenth century, factory production of screws didn’t start until the mid-1700s.
• As a screw manufacturer, it’s hard to imagine screws being carved by hand. Whole families literally worked day and night to file threads and cut slots in the heads of the screws. In England, blacksmiths delivered large quantities of nails formed with heads to families who then cut a slot in the head and laboriously filed the threading by hand. Not surprisingly, this tedious labor produced poor results-the the screws were uneven with shallow threads.
• 7) The first screw factory was a financial failure.
• In 1760 England, Job and William Wyatt patented a design for a machine that could produce screws automatically. It took them 16 years to raise the capital to open a factory. The Wyatt’s machine made a labor of several minutes into one of six or seven seconds while producing a much higher quality product. For some reason, the Wyatt brothers’ business was not successful. Their successors, however, were able to make their business profitable and produced 16,000 screws a day with a team of 30 people.
• 8) The machine for producing tapered threads was not invented until 1842.
• At the time, the lathes that produced screws were incapable of producing the tapered threading visible on a modern screw. Without tapering, the thread could not continue until the tip of the screw. This meant that a hole needed to be drilled before a screw could be installed. In the 1840s, several American manufacturers received patents for machines that could produce a tapered thread. This technological innovation helped the United States become the most important screw manufacturer in the world.
• Overall, a very engaging read.
• Interested in learning more about screws and threads.
1.Sheh Fung Screws Co., Ltd.
A specialist in manufacturing screws was established by president Lucky Tu in 1973. Over the past three decades, Sheh Fung has spared no efforts in promoting innovation through R&D and the accumulated experiences and expertise of its employees. Every step in the manufacturing process, beginning from the input of line material to packaging is under strict supervision by QC personnel. Each step must pass a QC test before entering the next step. Moreover, Sheh Fung has equipped itself with advanced techniques in design and manufacturing to assist clients that ask for customized products.
In 1989, Sheh Fung was ranked as one of Taiwan’s top 1,000 enterprises-the first time for the company. Moreover, to increase the quality of its products and service, the company improved its processes in order to earn an ISO 9001:2000 certification in July 1993. The company has been consistent in pursuing excellence, quality, and the most state-of-the-art technologies.
2. Powering Blind Rivets
3. BDN Fasteners
4. Sundream Group
5. Sundram Fasteners Ltd., Chennai
6. Daksh Fasteners in Ludhiana, Punjab
7. Sterling Tools Ltd., Faridabad
8. Kapsons India
9. GS Auto International Ltd.
10. Remax Fasteners Industries (India), Ludhiana
11. Simmonds Marshall Ltd., Pune
12. Varun Enterprises, Ludhiana
13. Kova Fasteners Pvt.Ltd., Ludhiana.
Some of the many settings in which we find and use fasteners include furniture, building construction, household appliances, military and defense, automotive manufacturing, HVAC, surgery, aerospace, and security.
History
The tale of the fastener is, as they say, a tale as old as time. We don’t know when humans first invented fasteners, but we are fairly confident that the screw fastener was invented by the ancient Egyptians.
Close to 200 years later, the Greek mathematician Archimedes invented the screw principle. Along with it, he designed the first wooden water screws, which he used to remove dirty bilge water from ships and irrigate farms. Another important early use of the screw was mechanical pressing; with it, Greeks and Romans pressed grapes and olives for grape juice and olive oil, respectively. Most of our knowledge of this comes from artifacts. For example, when excavating Pompeii, the great city that was wiped out by a volcano in 79 AD, archaeologists found that people of that time screwed together with the joints of many medical instruments. The first work to mention the screw did not come until the 1st century AD. This work was Mechanica, written by Heron of Alexandria.
Fast forward several hundred years, Europeans didn’t really use metal fasteners until Johann Gutenberg used them as a component of his famous printing press. After that, artisans gradually began using them more and more. Examples of 15th-century metal screw applications include armor assembly and clock making. Later, Leonardo da Vinci imagined the future of fastener production when he sketched a number of screw-cutting machine designs. In 1560, a Frenchman named Jacques Besson built his own version of the screw cutting, or screw threading, machine. His machine screw cutter met success, and soon after, ingeniously, he designed screw cutting plates that users could attach to old lathes.
In the 1700s, engineers and manufacturers began gaining access to technology and ideas that allowed them to begin to mechanize their machines. For example, in 1750 Antoine Thiout integrated a screw driver into the lathe, which changed them from manual to semi-automatic machines.
One of the most important contributions to the industrial fastener industry was the introduction of standards organizations. For example, in the 1870s, several people formed the US Standard Thread. Next, a group of engineers formed the Society of Automotive Engineers (SAE), which continues to issue fastener standards to this day. Early standards organizations took it upon themselves to create uniform design recommendations and quality standards, which made it much easier for consumers to get matched with the equipment they needed.
During the 20th century, manufacturers made many new industrial fastener designs, such as the self-drilling screw design in the ‘60s and started using many more materials than ever before. For example, in the last 20 years or so, fastener manufacturers have begun using nickel-based alloy fasteners, which can withstand much higher temperatures than steel. Fastener supply is incredibly diverse. We expect great things from the industrial fastener industry in the future.
Design
Production Process
Fabricators create the threads on threaded fasteners in many different ways. To start, they typically inject mold plastic fasteners, and a cast of the heat metal ones from sheet metal. Fabricators create threads via thread rolling or thread cutting. This process gives the metal better resistance to abrasion and a stronger thread.
Materials
Fasteners are usually made of metal, but in some applications, they are simply made of plastic. Most metal fasteners are manufactured from steel, stainless steel, brass, bronze, or titanium.
Steel is a formable, strong, and durable iron alloy. Steel fasteners are popular for use with a wide variety of applications, depending on their carbon content.
Stainless steel is extra durable alloy steel. It is a popular choice for many industries, such as automotive engineering, because these stainless-steel fasteners are strong and resistant to corrosion.
Brass is a light-duty alloy of copper and zinc. It is strong, corrosion-resistant, and quite an attractive yellow color.
Bronze is another light-duty copper alloy. This time, it is alloyed with zinc. Bronze alloys are ductile, lightweight, good conductors of heat and electricity, and corrosion-resistant.
Titanium fasteners are the number one choice for the aerospace industry because they are durable enough to be used as airplane construction fasteners.
Considerations and Customization
When designing or assigning fasteners for their customers, fastener manufacturers consider several important variables. These include the weight that the fastener will be expected to bear, the environmental conditions, and the space limitations.
These variables help manufacturers choose and customize details like the head type, the length, the fastener material, necessary coatings, screw grade strength, and decorative components.
These details are all important for different reasons. First, the head type makes a difference, as a wider head offers force on a greater surface area.
Types
For the best organization, we can divide industrial fasteners into two overarching groups: threaded fasteners and non-threaded fasteners.
Threaded Fasteners
Threaded fasteners are those fasteners that feature spiral ridges, called threads, on their body. Threads help them stay secure.
Prominent examples of thread fasteners included nuts, bolts, screws, studs, clinching fasteners, hex bolts, self-tapping screws, cap screws, tap-end studs, double-end studs, and continuous-thread studs.
Nuts are metal blocks designed to work with bolts in order to create a strong attachment between the joining surfaces.
Screws are an extremely broad category of externally threaded fasteners. In general, they feature a spiral-shaped thread shaft and ahead. Since they feature ahead, they do not need any other hardware to stay in place.
Studs are metal shafts or rods with threads on both sides.
Clinching fasteners contrast with those fasteners that deform when they are installed.
Hex bolts are bolts that feature a hexagon-shaped head. They are common for use in construction.
Self-tapping screws can tap their own hole as a user drives them into place.
Double-end studs are those studs that feature chamfered points and threads of equal lengths on both ends. Most often, customers purchase this type of fastener for flange bolting.
Continuous thread studs are studs that have no break in their threading. Rather, they are threaded continuously from end to end. Customers also often use continuous thread studs for flange bolting, though to do so, they must also use two nuts.
Non-Threaded Fasteners
Non-threaded fasteners are those fasteners that do not feature threads. Without threads, they are easier to install and easier to remove. Also, they do not require accessories like screwdrivers.
Some of the most common non-threaded fastener varieties include pin fasteners, retaining rings, rivet fasteners, blind rivet fasteners, and dowel pins.
Pin fasteners are simply steel pins that are most often cylindrical. With the help of a clip on the end, they fasten machine parts together and/or keep them in alignment. These come in handy in assemblies where the fastener must be removed frequently, like a tractor wagon. It would be too inconvenient to tighten and loosen a threaded bolt every time. In contrast, users can install and remove a pin in seconds.
Retaining ring fasteners hold parts and assemblies in housings or onto shafts. They prevent the assemblies or two parts from sliding around or slipping. They can do this because, when installed, they are sealed into position in a groove. Some are also self-locking mechanisms. Customers purchase retaining rings for use on pulleys, door hinges, and electronics, as well as on furniture to form connections.
Rivet fasteners, or rivets, are mechanical fasteners made up of a head attached to a smooth cylindrical shaft. Users install it by placing it inside a drilled or punched hole.
Blind fastener rivets hold two parts together at the head of a rivet. Sometimes called pop fastener rivets or blind rivet nuts, these fasteners consist of a tubular shaft and a mandrel running through the middle.
These solid cylindrical rods are generally quite small and are so useful in applications like toy-making and shelf supports.
Snap Fasteners
Snap fasteners are specialty fasteners designed for use on items like shirts, pants, and some bags. Sometimes called snaps, press studs, or poppers, they are made up of two metal or plastic interlocking discs.
Accessories
Examples of common industrial fastener accessories include spacers, plugs, washers, sticky circles, sticky squares, and screw protectors.
Proper Care
With a little bit of care, you can keep your metal fasteners and plastic fasteners working well for a long time. With metal fasteners, the key is preventing wear, corrosion, and rust. These detriments come from things like impact, friction, and moisture. To keep impact and friction at bay, we recommend you either request that your manufacturer add a protective coating to your fastener, or you keep your fastener well-lubricated all the time. To avoid moisture damage, you must limit the time your fastener is exposed to moisture. If your application is outdoors, this may not be possible.
Standards
Any industrial fasteners you purchase must meet the standard requirements of your application, industry, and location. For example, for military applications, fasteners must comply with federal military specifications. These fasteners are referred to as “mil-spec fasteners.” The U.S. government offers up variety design standards for fasteners, but many industries alternatively or additionally rely on the standards put out by SAE, ASTM, or ISO.
Also, make sure that you purchase a fastener that uses the correct standard measurement system. Fasteners are measured in two different systems: the metric system and the imperial system.
Finding the Right Supplier
If you are in the market for a high-quality fastener, you to need pair up with a high-quality industrial fastener supplier or manufacturer.
Before checking them out, make sure you know your specifications. We recommend writing them all down on a list so that you don’t forget anything.
Top Manufacturers and Suppliers of Screw Fasteners in the World –
1. Ford Fasteners, Inc (Hackensack, NJ)
2. AALL AMERICAN Fasteners (Cinnaminson, NJ)
3. Crouch Sales Co., Inc (Dallas, TX)
4. Liberty Fastener Company (Bensenville, IL)
5. Hanger Bolt and Stud Co.