Knowledge Builders

what are hex bolts

by Prof. Jeremie Dooley Published 2 years ago Updated 2 years ago
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Stock Domestic Hex Bolts

Length Diameter Diameter Diameter Diameter
1/2" 5/8" 3/4" 7/8" 1"
Plain Galv. Plain Galv. Galv.
8 - 17490 - -
10 - 17492 - -
Aug 25 2022

Full Answer

Which type of thread is used in a hex bolt?

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

What are the different types of Hex Bolts?

Popular hex bolt finishes include:

  • Bright zinc-plated
  • Zinc hex bolt
  • Clear passivated
  • Black oxide
  • Plain

How is the size of a hex bolt determined?

Hex wrench sizes are determined by the diameter of the screw. Standard-Size Allen Wrench 1/8 inch. 3/32 inch. 7/64 inch. 5/32 inch. 3/16 inch. 1/4 inch. 7/32 inch.

What is a heavy hex structural bolt?

Structural bolts are a specialized, heavy type of hex bolt intended for use in large structures, such as buildings and bridges. This bolt is designed to withstand loads of steel-to-steel structural connections and contains a flat, washer-faced bearing surface and a chamfered thread point. For your next industrial or commercial project, order structural bolts online or request a quote!

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What are hex bolts used for?

Hex bolts, or hex cap screws, are large bolts with a six-sided head (hexagonal!) used to fasten wood to wood, or metal to wood.

What is a hex bolt?

Hex Bolts are bolt fasteners with six sided hexagon head and externally threaded body. Hexagonal head profile enables easy wrenching while putting enough torque to the bolting joint. Hex bolts are used with hex nuts or a tapped hole. Hexagon head bolts, Hex machine bolts are other alias of Hex bolts.

What's the difference between hex bolts and bolt?

Tap bolts have threading all the way down regardless of their size. Hex cap screws may have a shoulder in longer sizes, which makes them stronger. Both are typically installed with a nut and designed to be driven by a wrench or socket driver.

What tool do you use for a hex bolt?

Allen wrenchA hex key wrench or Allen wrench has a hexagonal shaped body. The metal shaft may end in an L-shape or T-shape that serves as a handle.

How do you install a hex bolt?

1:352:48How to Sink a Bolt Into Wood : Woodworking Tips - YouTubeYouTubeStart of suggested clipEnd of suggested clipTake your hex socket bit and place it in your drill if you don't have one a socket also worksMoreTake your hex socket bit and place it in your drill if you don't have one a socket also works tighten it down a little bit take your washer put it on the back side.

How do you remove a hex bolt?

1:024:03How to Remove Stripped Hex Bolts (Stripped Allen Bolt ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipDrill. One end cuts in to whatever you're going to remove and it's called a burnisher. And it cutsMoreDrill. One end cuts in to whatever you're going to remove and it's called a burnisher. And it cuts through the original driver profile getting a clean finish. The other end is used for removal.

How do you read a hex bolt size?

0:242:15How to Read a Metric Screw Thread Callout - YouTubeYouTubeStart of suggested clipEnd of suggested clipSection on metric items this number is stamped on the surface of the fastener. And is preceded byMoreSection on metric items this number is stamped on the surface of the fastener. And is preceded by the letter M a bolt with M 3 stamped on its head will have a diameter of 3 millimeters.

How do you use a hex screw?

0:000:24What Tool Is Used With A Hex Bolt - YouTubeYouTubeStart of suggested clipEnd of suggested clipHead grips. And other tools can also be used provided they fit with the head shape lighter DutyMoreHead grips. And other tools can also be used provided they fit with the head shape lighter Duty bolts can be turned by hand while heavy-duty structural bolts will require Electric tools.

What size hex is M8?

HEX Bolt Dimensions - ISO 4017d1d1keM42.87.66M53.58.79M6411.05M85.314.3815 more rows

What can I use instead of a hex wrench?

Socket Wrench or Ratchet Wrench If you have one that will fit in the hex screw hole or hexagonal socket you are working with, a socket wrench may come in handy in place of an Allen wrench.

How do you tighten a hex bolt on a drill?

Start by securing the hex key wrench in a vise and cutting off the shorter end of the wrench with a hacksaw or grinder. Chuck the straight piece of wrench in a drill and set the torque on the lowest setting, so it will slip instead of damaging the piece or fastener.

What does a hex head screw look like?

Hex head screws have a hexagonal-shaped head that can be tightened with a spanner or socket. Hex head screws are screws with a hexagonal-shaped head that can be tightened with a wrench (spanner) or socket. Such tools engage with the external faces of the hex head.

What does a hex nut look like?

Hex nuts are fasteners with interior threading that are characterized by a hexagonal shape. They have a hollow, ring-shaped center. But hex nuts have a hexagonal exterior that features six sides. Most nuts are, in fact, hex nuts.

What does a hex head bolt look like?

0:000:19What Does A Hex Head Bolt Look Like - YouTubeYouTubeStart of suggested clipEnd of suggested clipHead bolt is characterized by a six agonal head shape. Which is flat on the top. These bolts may beMoreHead bolt is characterized by a six agonal head shape. Which is flat on the top. These bolts may be fully threaded or partially threaded which means they will have a smooth neck just below the head.

How do you read a hex bolt size?

0:242:15How to Read a Metric Screw Thread Callout - YouTubeYouTubeStart of suggested clipEnd of suggested clipSection on metric items this number is stamped on the surface of the fastener. And is preceded byMoreSection on metric items this number is stamped on the surface of the fastener. And is preceded by the letter M a bolt with M 3 stamped on its head will have a diameter of 3 millimeters.

Is hex the same as Allen?

A hex key, also known as an Allen key is a simple tool used to drive bolts and screws with hexagonal sockets in their heads.

What Are Hex Bolts?

Hex bolts are threaded fasteners that feature a hexagonal head. All bolts have a head. The head, of course, is the top part of a bolt that’s integrated with the narrower shank below it. Hex bolts feature a hexagonal head. You can find hex bolts in different sizes, materials and specifications. Nonetheless, they all have a hexagonal head.

Benefits of Hex Bolts

With their hexagonal head, hex bolts offer several benefits. They are ideal for fastening applications in small spaces, for instance. In machines and equipment where there’s limited space, hex bolts are often preferred for this reason.

What is a hex bolt?

Hex bolts are six-sided bolts made of low-carbon steel and frequently used in construction and repair applications. A few of the most common specifications include: ASTM A307A, A354, and F1554. Hex bolts can be partially threaded or fully threaded, which are more commonly referred to as a tap bolt. They are typically manufactured by ...

What size bolts does AFT sell?

As a wholesale supplier of hex bolts, AFT Fasteners carries thousands of different bolt sizes, including lengths up to 36” in plain, hot dipped galvanized, and zinc finishes. Search our selection or contact us today for a custom quote – our experienced sales team is available to help.

What is the size of a hex bolt?

Size refers to nominal diameter of the bolt while length is just that—how long the bolt is. Hex bolts range in size from 1/4" to 4" in diameter;

What size bolts are used for hex bolts?

Hex bolts range in size from 1/4" to 4" in diameter; 1/4" to 1 1/2" sizes are commonly available.

Why do hex bolts seize?

Stainless steel hex bolts are susceptible to thread galling and seizing. It is believed that the self-generated chromium oxide film is destroyed during tightening, which exposes high points that shear or lock together. Increased adhesion of the thread surfaces from the clogging-shearing-locking action causes the galling phenomenon. If severe enough, seizing can occur preventing further rotation of the nut in either direction. While it may not be completely preventable, it can be substantially reduced. A thread lubricant is the most effective method. (Keep in mind that lubricants reduce friction, which can lead to overtightening.) Alternatively, stainless steel alloys having different hardnesses—like a 316 nut and a 304 hex bolt—have less tendency to gall.

What is a grade A307 bolt made of?

Grade A307 hex bolts are made from low or medium carbon steel as is Grade 2, which is also cold worked; Grade 5 is from medium carbon steel, quenched and tempered; and Grade 8 is manufactured from medium carbon alloy steel, quenched and tempered.

What is right hand thread?

Right-hand threads are standard (turn clockwise to tighten). Hex bolts are not pointed whereas hex cap screws have a chamfered (beveled) point to protect the first thread from damage and to facilitate entry into an internally threaded part such as a nut or tapped hole. SIZES and LENGTHS.

How many times is a bolt threaded?

Short lengths are fully threaded while longer lengths follow a standard formula: for bolts 6" and shorter, the threaded length is two times the basic thread diameter plus 1/4", and for lengths greater than 6", two times the diameter plus 1/2".

How many threads per inch on a 1 1/2" bolt?

Also, smaller sizes have more threads per inch than larger sizes—a 1 1/2" UNC bolt, for example, has just 6 threads per inch. Coarse bolts are more common, and there are advantages and disadvantages to both coarse and fine threads. (For more information about threads, visit our Tech Data section.)

Why are alloy steel screws coated?

Known for their strength, these alloy steel screws are coated to provide corrosion resistance in wet environments.

What is a B8 screw?

These Grade B8 screws are made from 18-8 stainless steel and have good chemical resistance. Also known as pressure bolts, they meet the high-pressure and high-temperature regulations of ASTM A193 and are used to secure pressure tanks, valves, and flanges.

What are metric screws used for?

These metric screws help prevent counterclockwise-moving parts from loosening. Use them for medium-strength fastening.

What is a metric set screw?

These metric set screws have a protruding tip that locks within a mating hole or slot to keep parts aligned. They're also known as dog-point set screws.

What is a Grade 8 screw?

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems . They are at least 25% stronger than medium-strength steel screws.

How to tighten a screw?

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening. For use in medium-strength fastening applications.

What is a Phillips drive screw?

When clearance for a wrench is limited, these screws have a Phillips drive so you can install them with a screwdriver. They are used for high-strength fastening.

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1.What are Hex Bolts? What are they used for? - Home …

Url:https://www.homestratosphere.com/what-are-hex-bolts/

11 hours ago  · Hex bolts are threaded fasteners that feature a hexagonal head. All bolts have a head. The head, of course, is the top part of a bolt that’s integrated with the narrower shank below it. Hex bolts feature a hexagonal head. You can find hex bolts in …

2.The Beginner's Guide to Hex Bolts | Fasteners | OneMonroe

Url:https://monroeengineering.com/blog/the-beginners-guide-to-hex-bolts/

10 hours ago Hex bolts have hexagonal heads (six-sided), machine threads, and typically used with a tapped hole and nut. The most common specifications include: ASTM A307A, A354, and F1554. Hex head bolts can be partially threaded or fully threaded, which are commonly called tap bolts. They are manufactured by a hot-forging process and allow for a die seam ...

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Url:https://www.aftfasteners.com/hex-bolts/

11 hours ago 17 rows · Click on a Hex Bolt style above to continue shopping… Hex Bolts. Hex bolts are used to ...

4.Hex Bolts - Fastener Mart

Url:https://www.fastenermart.com/hex-bolts.html

11 hours ago Hex Bolts. Hex Bolts are different then hex cap screws as they are hot forged and not cold headed. They also do not have the tight tolerances of hex cap screws but are highly used in the construction industry because of their mechanical properties. Heavy Hex Bolts are externally threaded, forged fasteners with a six-sided head that is wider than that of a standard hex bolt.

5.Videos of What Are Hex Bolts

Url:/videos/search?q=what+are+hex+bolts&qpvt=what+are+hex+bolts&FORM=VDRE

32 hours ago A mechanical device of low or medium carbon steel, externally threaded, 1/4 inch in diameter or wider, with a hex head trimmed and a galvanized hot dip coating. A hex bolt like a hex cap screw, does not have a washer face on its bearing surface nor a machined rim. The tolerances of the body are not as similar as a cap screw. Application/Advantages

6.Hex Bolts at Lowes.com

Url:https://www.lowes.com/pl/Hex-bolts-Bolts-Fasteners-Hardware/4294546152

14 hours ago Made from 316 stainless steel, these Grade B8M screws are more corrosion resistant than 18-8 stainless steel screws and have excellent resistance to chemicals and salt water. Screws meet ASTM A193 regulations, so they can be used in high-pressure and high-temperature applications. Also known as pressure bolts.

7.Hex Bolts | McMaster-Carr

Url:https://www.mcmaster.com/hex-bolts

34 hours ago  · What Is a Hex Bolt? A hex bolt is what most people imagine when they think of a bolt. The shape of its head gives the bolt its name. The head has six sides and is hexagonal, hence the name hex bolt. Hex bolts can be used in a range of …

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