Screws, often known as bolts, are fasteners that are inserted into materials with the help of instruments such as hammers or screwdrivers. Screws exist in a variety of sizes and forms, each with its own set of characteristics. They can be round, thin, fat, short, long, and a variety of other shapes and sizes, but how can you decide which one is perfect for your project?
So, we compiled a long list types of screws so that you may learn more about each one and select the best one for your project. It’s here.
Different Types Of Screws
1. Decking Screws
Decking screws are carbon steel or stainless-steel screws that are used to secure composite boards or wooden to wood or metal. These screws are available in a variety of sizes and lengths and are ideal for securing decking panels to frames.
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2. Pan-Head Screws
Pan-head screws are often used in metal applications and have flat heads with round sides. The only difference between these machine screws and oval head screws is that the oval head kinds are likewise rounded on top, whilst the pan-head screws have flat heads. Pan-head bolts are also accessible with slotted heads that have a single cut and can be used with any screw drive.
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3. Hex Cap Screws
Hex cap screws are huge bolts with a hexagonal head, as the name suggests. They’re used to join two pieces of wood or metal together. Hex screws have small steel threads that make them perfect for home improvement work on the inside or stainless-steel projects on the outside. These screws have a flat washer and can be used for precise applications.
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4. Carriage Bolts
Carriage bolts are used to connect metal to wood in woodworking tasks. The domed head of these bolts prevents them from loosening. Carriage bolts have a big head that prevents them from being pulled into a wooden structure. Because of its machine screw thread, carriage bolts are equally useful for metal applications as they are for woodworking tasks. Carriage bolts, on the other hand, are incompatible with drill adaptors, making installation in metal problematic, if not impossible.
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5. Lag Bolts
Lag screws have a hexagonal head and usually are intended for use in high-impact applications. Wood-retaining sidewalls and decks are the most usual areas to find these screws. Lag bolts are exceptionally robust, long-lasting, and robust. The core is largely comprised of high-carbon steel, with a galvanized zinc finish on the outside. They are protected from corrosion and rust by the galvanized zinc substance. Furthermore, lag screws are rust-resistant since moisture and air cannot permeate them.
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6. Hammer Drive Screws
Self-tapping screws and hammer drive screws both are in the same group. They’re made up of unslotted circular heads that can be utilized to affix nameplates or signage as well as close drain holes. For rust-proofing tubular structures, hammer drive fasteners are also extremely useful. These screws work similarly to nails in that they are hammered or mallet pushed into holes for rapid installation. It’s important to remember that the screw must be made of a more durable material than the connecting portion. For the task to be accomplished properly, you’ll also need a small pre-drilled hole. Hammer drive screws are extremely robust and strong due to their unique design. They are also great for wall signs and other similar purposes, in addition to attaching nameplates.
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7. Square Head Bolts
Square head bolts are similar to hexagonal-shaped cap screws, except they have a 4-sided square head instead of a 6-sided hex head. This square head allows for a more secure wrench grip during fastening. Bolts with square heads, commonly known as screws, are meant to be driven with a grip wrench. These bolts are typically employed for aesthetic reasons, such as to lend character to new construction or to match present bolts in older structures.
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8. Socket-Head Cap Screws
Socket-head cap bolts are utilized in applications where space is limited. These screws’ inner wrenching and cylindrical properties make them ideal for situations where outer wrench fasteners aren’t possible. The automobile industry, mining machinery, machine tools, and technical applications all require socket-head cap screws.
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9. Oval Head Screws
Trim or undercut head oval head screws are offered with reduced screw lengths to provide for better thread grip. This is especially true of the oval undercut head fastener with a shallower countersink.
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10. Wood Screws
Wood screws have a threaded shaft. They are used to join two pieces of wood together. These screws have varied thread times and come in a variety of heads. Flat and round heads, on the other hand, are the most popular wood screw heads.
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11. Sheet Metal Screws
Sheet metal screws are used to join 2 pieces of sheet metal together, as well as tubing and other metals. Sheet metal screw heads come in a variety of shapes and sizes, including hex, flat, and round. These slotted screws are constructed of aluminum or stainless steel with a weather-resistant coating. They’re mostly used in the welding industry.
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12. Thread-Rolling Screws
Rather than cutting threads into the component, thread-rolling screws form threads by applying pressure to the sidewalls of the material. These screws are primarily utilized with softer materials including wood, plastic, and nylon. Their double-lead thread design reduces torque and increases pullout strength. This helps to keep the material from breaking or being damaged. Some thread-rolling screws have threads that are broadly accepted, making them easier to slide into pre-drilled holes.
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13. Socket-Head Screws
When you require a screw to sit below the surface of your material, socket-head screws are ideal. Wherever a joint is needed, these screws are extremely sturdy and dependable. They are also extremely corrosion resistant. Apart from their sturdiness, they also provide an appealing and high-quality finish.
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14. Set Screws
Set screws are usually used to secure a piece of furniture or just against another piece of furniture. A set screw, for example, can be used to secure gear or pulley to a shaft. These screws are completely threaded without even a head protruding, and they come in a variety of shapes and sizes.
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15. Weld Screws
Weld screws are used to form a shaft for elements that need to be fitted or secured to a metal or aluminum surface. A washer or nut can be used to do this. Weld screws have tabs that protrude from the head to allow welding without a hole. After that, the welding stud is attached to a metal item. This stud is found at the bottom of the metal.
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16. Slotted Cheese Screws
The slotted cheese head screws have around, elevated head. they are made of stainless steel. The height of the cheese head is nearly equal to half of its diameter. Because they are exceedingly corrosion and rust-resistant and may be used in underwater projects, these screws are quite popular in electrical, industrial, communications, and automotive lighting applications.
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17. Fillister Head Screws
Fillister head screws are basically slotted equipment fasteners with a huge oversized head. It can be used to connect metal and wood. Fillister head screws, also known as cheese head screws, are identical to pan head machine bolts but have a higher side height. These screws have a head that is best for counterbored holes.
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18. Drywall Screws
Drywall screws are common fasteners used to secure full or partial sheets of drywall to joists in the wall or ceiling. There are two different kinds of drywall screws. These are the following:
Coarse: Coarse drywall screws are typically used usually for wood studs. The threads are widely spaced and effective in holding into the wood. A phosphate finish and an exceptionally sharp point are further features of the drywall screw.
Fine: Since this drywall screw is absolutely self-threading, it’s ideal for metal studs. Double threads on the fine drywall screws make self-starting more practical and easier.
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19. Masonry Screws or Concrete
Concrete screws are available with a variety of head styles, ranging from flat and pan to hex. Pan and flat head bolts can be flush with the material’s surface for a cleaner appearance, although a hex-head slotted screw is much easier to drive in. These screws deliver robust and sturdy results when attached to stone or concrete due to their high-low threading configuration.
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20. Machine Screws
Machine screws are usually used in a variety of industries, including electronics, manufacturing equipment, and engineering to keep machine parts together. With the assistance of a nut, these screws are designed to connect to a tapped hole on a periphery. Their blunt ends are utilized to join metal components. Nylon, stainless steel, and carbon are just a few of the materials that machine bolts can be found in.
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21. Modified Truss Screws
The self-tapping variants of modified truss screws are also known as round wafer heads or washer heads. They’re employed in a variety of sectors, including HVAC, woodworking, and sheet metal. These screws can also be used to connect the ducting elements of an air conditioner or to lay insulation on metal and wood surfaces. They’re also good for simple metal and aluminum framing jobs.
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22. Washer-Faced Screws
Washer-faced screws have a variety of washers that function as springs to shorten the space between a nut’s head and the bolt’s head. Some washer-faced bolts have teeth that enter into the surface and secure the screwhead. Shaker-proof lock washers with twisted-out teeth are another name for these screws.
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23. Thread-Cutting Machine Screws
Because thread-cutting machine screws have sharp edges, it’s critical that the hole’s depth be somewhat more than the screws. This prevents the substance from being stuck inside the device. Thread-cutting screws are used to reduce internal device stresses, making them excellent for materials that are exceptionally rigid. A thread-producing screw, on the other hand, has no cutting edge, making it difficult to use in materials with very low strength properties force. However, a tight bit occurs between the thread-producing screw and the substance as a result of this.
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24. Self-Drilling Screws
Drill tips on self-drilling screws are available in a variety of lengths. The higher the number, the longer the drill tip. You can also choose between different point sizes. Keep in mind that the thickness of the material will alter the point’s length requirements. Self-drilling screws are used for fastening or connecting steel or sheet metal to other metals and come in a variety of sizes and varieties.
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25. Self-Tapping Screws
Self-tapping fasteners, as the name implies, tap their own thread. To use them, make a hole a bit smaller than the diameter of the screw. Then you can drive the screw into a delicate material like wood after drilling a pilot hole. The screw’s threads will dig into the wood and fasten it.
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26. Framing Screws
Framing screws are versatile fasteners that can be used in a variety of applications, including sheet metal, laminate, cement fiberboard, and composite decking. These screws are made to countersink into a variety of surfaces, including hardwood floors and fragile composites. The screw’s underheard cutting teeth, as well as the six cutting pockets, help to achieve this.
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Related Article: Parts Of Screw
27. Tamper-Resistant Screws
Tamper-proof screws can be used to deter or prevent vandalism in buildings or locations that are open to the public. The unusual drive distinguishes this security screw type, making disassembly or tampering more challenging, if not impossible. In jails, these tamper-proof screws are mostly used to secure objects like car license plates, grill bars, and gutters.
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28. Sex Bolts
Mating screws and sex bolts are the same things. Inters crews, barrel nuts, partition screws, binding posts, architectural sex bolts, and Chicago screws are some of the other names for them. A sex bolt is a nut with an internally threaded barrel-shaped flange and a pointy boss. This bolt, along with the machine screw that goes with it, sits on one side of a substance or surface that needs to be secured. These nuts are preferred because of their built-in slot characteristics and low profile, which aid in screw tightening into the surface.
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29. Eye Bolts
Eyebolts are one of the most popular screws among both homeowners and materials management professionals. In fact, you’re likely to have seen these bolts in your neighborhood hardware shop. A threaded base and a ring at one end make up an eye bolt. By inserting wire or rope through their eye, these bolts can raise items.
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30. J-Bolts
J-bolts are J-shaped locking screws with a flat side that is threaded. Bolts like these are commonly used in manufacture to attach walls to concrete foundations or stone. J-bolts have a curved end for added strength and can be used as anchor fasteners in concrete. The long end of the J-bolt is available in a variety of lengths, with the end product commonly resembling a J.
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31. U-Bolts
U-bolts are U-shaped industrial fasteners with two legs or arms that create a bending base. These threaded arms or legs are intended for use with washers and screws, and they’re often used with a crosspiece for added security. A U-bolt is most typically used in industrial, plumbing, and construction projects and can be put into pre-drilled or punched holes.
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32. Shoulder Bolts
Shoulder bolts and machine screws are the same things. The shoulder, head, and threading are the three parts, with the head having the biggest diameter. These bolts are particularly well-known for their distinct characteristics and adaptability. They’re employed in a wide range of sectors, from automobiles to wood furniture. Pulleys and connections can also benefit from them.
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33. Elevator Bolts
Elevator bolts are used in a wide range of applications. These bolts can, for example, secure any sort of flooring, level furniture legs that are wooden, and even be found on snowmobiles and skateboards. The threads are conventional right-hand and come in a variety of lengths, from long to short, that are completely threaded. The threaded fastener is measured from the top of its head to the end of the fastener. To name only several options, an elevator bolt’s head can be countersunk flat, square neck under the head.
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34. Hanger Bolts
Hanger bolts are basically headless screws that are typically used in wood installations to add an extra exterior thread or form an interior fastening junction. One side of this bolt thread holds into the wood with the help of a self-tapping lag screw, while the other side features machine bolts threads for a nut.
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35. Raised Head Screw
Raised heads, also called oval-shaped heads, have a similar angle to flat screws but a dome-shaped head. To accommodate the angle, you’ll also need to countersink these screws. The head of a raised screw, unlike a flat screw, will protrude somewhat from the surface. This shape is more decorative than functional, as it does not assist the screw drive performance.
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36. Binding Screw
Binding screws are a special sort of screw that can be used for a variety of tasks. These screws feature a little domed head with a male and female side that screw into each other. Short binding screws are commonly used to keep huge manuals and many other bookbinding projects together, but they can also be used to hold lather, swatches, and other materials together.
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You now have a better understanding of the many types of screwheads and how they might help you with your project. You can purchase these both online and offline, depending on your preferences. If you have any more questions, please leave them in the comments area.
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