Masonry

What Are Concrete Anchor Bolts Called and How Do They Work?

What Are Concrete Anchor Bolts Called

Concrete anchor bolts are called by various names depending on their specific type and manufacturer.

Some common names for concrete anchor bolts include concrete screws, wedge anchors, sleeve anchors, drop-in anchors, and split drive anchors.

Each type of anchor bolt is designed for secure fastening of items to concrete, brick, or block surfaces.

It is essential to understand these different names when selecting the appropriate anchor for a particular application.

Did You Know?

1. What are concrete anchor bolts called? J-bolts. J-bolts are a type of anchor bolt that has a unique J-shaped end. This shape allows the bolt to be secured into concrete by embedding the curved portion into the concrete while leaving the straight portion exposed for attaching objects.

2. The terms “anchor bolts” and “rawl bolts” are often used interchangeably. Rawl bolts refer specifically to anchor bolts that have a split expansion sleeve at the end, which helps secure the bolt into the concrete by expanding when tightened.

3. Wedge anchors are another type of concrete anchor bolt. These bolts feature a cone-shaped end with a sleeve and a wedge-shaped element. When tightened, the wedge is driven into the sleeve, causing it to expand and securely anchor the bolt in the concrete.

4. Sleeve anchors are commonly used for medium-duty applications in concrete. They consist of a cylindrical metal sleeve with a cone-shaped expander plug at the end. As the bolt is tightened, the expander plug is pulled into the sleeve, causing it to expand and grip the concrete tightly.

5. Drop-in anchors are a type of concrete anchor bolt that offers a flush finish. These bolts work by inserting them into a pre-drilled hole in the concrete and then hammering the internal plug into the anchor, causing it to expand and secure itself within the hole. They provide a discreet and reliable anchoring solution for various applications.

Concrete Screws

Concrete screws, such as Tapcon, self-tapping concrete screws, or con-sert screws, are widely used as concrete anchor bolts. These screws are specially designed to securely attach items to concrete, brick, or block surfaces.

The different names associated with concrete screws come from various manufacturers and brands that produce these fasteners. Some well-known names include Kwik-con, Tapper, titen, ruff-nex, and masonry screws. Thanks to their deep threads, concrete screws offer high levels of holding power, making them ideal for heavy-duty applications. Moreover, these screws can be easily installed using standard power drills, which significantly reduces the time and effort required for fastening.

Wedge Anchors

When it comes to heavy-duty fastening, wedge anchors are widely considered to be a top choice. These anchor bolts derive their name from their unique design, which includes a wedge-shaped end that expands within the concrete to provide a strong grip. They are commonly known as stud anchors, Kwik-bolts, and Thunderstuds, depending on the manufacturer and specific variations.

Wedge anchors are suitable for both static and dynamic loads and can be used in both cracked and uncracked concrete structures. Their versatility and strength make them an ideal choice for applications such as securing structural elements, machinery, and equipment. Manufacturers offer a wide range of wedge anchors, including the popular Sup-r-stud, Kwik bolt II anchor, and Hilti Kwik bolt.

  • Wedge anchors are widely considered as a top choice for heavy-duty fastening.
  • They derive their name from their unique wedge-shaped design.
  • Commonly known as stud anchors, Kwik-bolts, and Thunderstuds.
  • Suitable for both static and dynamic loads.
  • Can be used in cracked and uncracked concrete structures.
  • Ideal for securing structural elements, machinery, and equipment.
  • Popular wedge anchor variations include Sup-r-stud, Kwik bolt II anchor, and Hilti Kwik bolt.

When it comes to heavy-duty fastening, wedge anchors are widely considered to be a top choice.

Sleeve Anchors

Sleeve anchors are a type of fastener that is specifically designed for fastening objects to concrete, brick, or block surfaces. As the name suggests, sleeve anchors utilize a sleeve or casing that expands when the anchor is driven into the concrete, providing a secure and reliable fastening solution.

Some popular brands of sleeve anchors include Thunderbolt, Dynabolt, and Lok bolt. These brands are known for their high-quality and reliable performance.

One of the advantages of using sleeve anchors is their versatility. They are available in various lengths and diameters, allowing them to cater to different applications and load requirements. This makes them suitable for both medium and light-duty loads.

In addition to their versatility, sleeve anchors offer excellent resistance against vibration and shock. This makes them ideal for applications where stability and durability are crucial, such as electrical installations, machinery anchoring, and furniture assembly.

Overall, sleeve anchors are a reliable and effective fastening solution that provides secure attachments to concrete, brick, or block surfaces. Their ability to withstand vibration and shock, combined with their versatile sizing options, makes them a popular choice in a wide range of applications.

Drop-In Anchors

Drop-in anchors, also known as female anchors or HDI anchors, are versatile fasteners commonly used in the construction industry. The name “drop-in” refers to their installation method, as they are dropped into a pre-drilled hole in the concrete. These anchors consist of a threaded rod or bolt inserted into a sleeve, which is then embedded into the concrete when a tightening torque is applied.

Popular names for drop-in anchors include Hilti drop-in anchor, HDI anchor, sup-r-drop, and Multi-Set concrete anchor. Drop-in anchors offer excellent holding power and are suitable for applications where frequent removal or repositioning is required. They are commonly used in applications such as suspended ceilings, plumbing installations, and HVAC systems.

Split Drive Anchors

Split drive anchors, also known as split anchors or CSD anchors, are a dependable type of anchor bolt primarily used in masonry applications. These anchors feature a split bolt head that expands when impacted by a hammer, driving the anchor into the concrete or masonry substrate. Split drive anchors are available in both round head and flat head variations.

Due to their simple yet effective installation method, split drive anchors are commonly used in applications where a secure and reliable connection is required. The anchor’s expansion creates a tight fit within the concrete or masonry, ensuring optimal holding power. They are frequently utilized in projects such as attaching signs, setting handrails, and fastening brackets.

Conclusion

Concrete anchor bolts are essential fasteners used to secure items to concrete, brick, or block surfaces. They come in various types and are known by different names, such as concrete screws, wedge anchors, sleeve anchors, drop-in anchors, and split drive anchors.

The wide range of options allows for adaptability to specific applications and load requirements. Whether you are fastening heavy equipment, installing electrical systems, or setting up shelves, understanding the different names and types of anchor bolts helps you make the correct choice for your project.

  • Concrete anchor bolts are essential fasteners for securing items to concrete, brick, or block surfaces.
  • Different types of anchor bolts include concrete screws, wedge anchors, sleeve anchors, drop-in anchors, and split drive anchors.
  • The various options provide adaptability to specific applications and load requirements.
  • Understanding the different names and types of anchor bolts is important for making the correct choice for your project.

“The wide range of options allows for adaptability to specific applications and load requirements.”


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Frequently Asked Questions

What is a concrete bolt called?

A concrete bolt is commonly referred to as an anchor bolt. These anchor bolts, such as wedge anchors and sleeve anchors, are specifically designed to secure heavy loads to concrete surfaces. By utilizing their unique structural design, anchor bolts are capable of providing substantial support against both pullout and shear force. Their effectiveness in holding a tremendous amount of weight makes them a reliable choice for any construction or structural project requiring concrete anchoring.

What is another name for an anchor bolt?

Another name for an anchor bolt is a fastener. This versatile component, commonly used for making connections, plays a crucial role in various structures. Whether it’s securing steel plates or providing support through stiffeners, anchor bolts offer stability and reliability in a wide range of applications. Their ability to fasten and hold structures firmly in place makes them an essential part of many construction projects.

What is a concrete anchor bolt?

Concrete anchor bolts are essential fasteners specifically designed for securing heavy-duty structures to concrete surfaces. Unlike concrete screws, which are suitable for lighter fixtures, anchor bolts play a crucial role in ensuring the stability and load-bearing capacity of structures. These bolts provide a secure and reliable connection by penetrating into the concrete, firmly anchoring the object in place. Their robust design makes them ideal for applications where high load-bearing requirements are necessary, making them an indispensable component in construction and engineering projects.

What are concrete anchors?

Concrete anchors are essential steel elements that are either embedded into the concrete during its casting or installed into hardened concrete structures. Their primary function is to bear and distribute loads into the concrete for added stability and security. Cast-in concrete anchors generally comprise various types such as headed bolts, hooked bolts (J- or L-bolts), and headed studs. These anchors play a crucial role in ensuring the durability and structural integrity of concrete constructions by providing robust connections and dependable load transmission.

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