When it comes to fastening materials together, bolts play a vital role. There are several different types of bolts available, each with its own unique characteristics and uses. In this article, we will explore the most common types of bolts, including hex bolts, carriage bolts, and lag bolts, and how they can be used in various applications.
Key Takeaways:
- Hex bolts, carriage bolts, and lag bolts are three popular types of bolts.
- Hex bolts have a six-sided head and are the most commonly used bolts.
- Carriage bolts have a round head and a square neck to prevent turning.
- Lag bolts, also known as lag screws, have a hex head and spaced threads.
- Each type of bolt is designed for different applications and has different strengths and uses.
Standard Carriage Bolts (Square Neck)
Standard carriage bolts, also known as square neck bolts, are a commonly used type of bolt that feature a square neck under the head. This square neck is designed to prevent the bolt from turning as a nut is tightened. These bolts are available in a variety of materials and finish options to suit different applications and requirements.
Bolt Material Options
Standard carriage bolts can be found in various materials, including:
- Steel: A strong and durable material suitable for general-purpose applications.
- Stainless Steel: Provides excellent corrosion resistance, making it ideal for outdoor and marine applications.
- Black Oxide: Offers a dark, protective coating that reduces corrosion and enhances the appearance of the bolt.
Bolt Finish Options
In addition to different materials, standard carriage bolts come in various finish options, including:
- Zinc: Provides a protective coating that helps prevent rust and corrosion.
- Hot Dip Galvanized: Offers superior corrosion resistance, making it suitable for outdoor and heavy-duty applications.
- Black Oxide: Gives the bolt a sleek black finish while providing some level of protection against corrosion.
When choosing a standard carriage bolt, it is important to consider the material and finish that best aligns with the specific requirements of your project or application. The right combination of material and finish can ensure the longevity, durability, and reliability of the fastening solution.
| Bolt Material | Bolt Finish |
|---|---|
| Steel | Zinc |
| Stainless Steel | Hot Dip Galvanized |
| Steel | Black Oxide |
Ribbed Neck Carriage Bolts
Ribbed neck carriage bolts are a type of bolt that feature vertical ribs under the head instead of a square neck. These ribs serve a crucial purpose – they help prevent the bolt from turning as a nut is tightened or removed, providing extra grip and stability. Ribbed neck carriage bolts are commonly used in applications where a secure and reliable fastening solution is required.
When it comes to material options for ribbed neck carriage bolts, there are two main choices: steel and stainless steel. Steel ribbed neck carriage bolts offer strength and durability, making them suitable for most applications. On the other hand, stainless steel ribbed neck carriage bolts provide excellent corrosion resistance, making them ideal for outdoor or high-moisture environments.
Additionally, there are different finish options available for ribbed neck carriage bolts. Zinc finish provides a protective coating that helps prevent rust and corrosion, making it suitable for both indoor and outdoor use. Stainless steel finish, on the other hand, offers superior corrosion resistance and is perfect for applications in highly corrosive environments.
| Material Options | Finish Options |
|---|---|
| Steel | Zinc |
| Stainless Steel | Stainless Steel |
Ribbed neck carriage bolts provide a reliable and secure fastening solution. Their unique design and material options make them versatile and suitable for various applications. Whether you need to secure equipment, machinery, or structures, ribbed neck carriage bolts offer the grip and stability you need.
Dowel Screws
Dowel screws are versatile fasteners used for permanently joining two pieces of wood together. They feature wood screw threads and points at both ends, allowing for a secure and durable connection. Dowel screws are commonly used in the furniture industry, where they provide a strong and reliable solution for assembling wooden furniture pieces.
These screws are typically made of steel/zinc material, which offers excellent strength and corrosion resistance. The steel/zinc material option ensures that the dowel screws can withstand the demands of furniture applications while maintaining their structural integrity.
Whether you’re building a wooden chair, table, or cabinet, dowel screws are essential for creating sturdy joints and ensuring the longevity of your furniture. Their reliable performance and ease of use make them a preferred choice in the furniture industry, where precision and durability are key.
Table: Dowel Screw Sizes
| Dowel Screw Size | Length (inches) | Diameter (inches) |
|---|---|---|
| #6 | 1 | 1/8 |
| #8 | 1-1/4 | 5/32 |
| #10 | 1-1/2 | 3/16 |
Elevator Bolts
In the world of fasteners, elevator bolts stand out as a unique and essential component in many industries. Designed with a wide, countersunk flat head and a square neck, elevator bolts offer a reliable and secure fastening solution. While they share similarities with carriage bolts, elevator bolts have a flat head instead of a rounded head, making them ideal for applications such as conveyor systems, particularly in the elevator industry.
The versatility of elevator bolts lies in their compatibility with conveyor systems, which are widely used in industries such as agriculture, mining, and manufacturing. These bolts provide a strong and durable connection, ensuring the smooth and efficient movement of materials along the conveyor belt. Elevator bolts play a crucial role in maintaining the integrity of the conveyor system, preventing downtime and improving productivity.
Elevator bolts are available in steel/zinc material options, providing excellent strength and corrosion resistance. This ensures that the bolts can withstand demanding operating conditions and environments. Whether it’s moving heavy loads or enduring high levels of vibration, elevator bolts deliver reliable performance and longevity.
| Advantages of Elevator Bolts | Applications |
|---|---|
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When it comes to selecting the right fastener, elevator bolts prove to be an excellent choice for conveyor systems and other related applications. Their unique design, combined with the strength of steel/zinc material, ensures reliable performance, durability, and resistance to corrosion. Whether you’re involved in the elevator industry or require secure fastening for your conveyor system, elevator bolts are a reliable and efficient solution.
Hanger Bolts: Full Thread and Plain Center Options
Hanger bolts are versatile fasteners that play a crucial role in various industries and applications. These unique bolts feature threading on both ends, with one end having wood screw type threads and the other end having machine screw threads. This design allows for a strong and secure fastening system, making hanger bolts perfect for suspending electrical wiring, sheet metal, and other materials.
When it comes to hanger bolts, there are two main options available: full thread and plain center. Full thread hanger bolts have threading that extends the entire length of the bolt, providing maximum grip and stability. On the other hand, plain center hanger bolts have a smooth center portion without any threading, making them ideal for use with pre-drilled holes or with a hex nut.
Material options for hanger bolts include steel/zinc and stainless steel. Steel/zinc hanger bolts offer excellent strength and corrosion resistance, making them suitable for a wide range of applications. Stainless steel hanger bolts, on the other hand, provide superior corrosion resistance and are particularly well-suited for environments where moisture or harsh chemicals may be present. The choice of material depends on the specific requirements of the project or industry.
Benefits of Hanger Bolts:
- Strong and secure fastening system
- Versatile applications in various industries
- Available in both full thread and plain center options
- Material options include steel/zinc and stainless steel
“Hanger bolts provide a reliable solution for suspending electrical wiring, sheet metal, and other materials in a wide range of industries. Their unique design and material options make them versatile and durable, ensuring a secure fastening system for your projects.” – Industry Expert
| Material | Thread Type | Applications |
|---|---|---|
| Steel/Zinc | Full Thread | Electrical wiring, sheet metal, furniture industry |
| Steel/Zinc | Plain Center | Pre-drilled holes, general fastening applications |
| Stainless Steel | Full Thread | Outdoor applications, corrosive environments |
| Stainless Steel | Plain Center | Marine applications, chemical industry |
Hex Cap Screws: The Most Common Type of Hex Head Bolts with Various Material and Finish Options
Hex cap screws, also known as hexagon socket head bolts, are widely used in various industries and applications. They are the most common type of hex head bolts, known for their versatility and reliability. Hex cap screws have a six-sided head with a recessed socket that allows for easy installation and removal using an Allen wrench or hex key. These bolts are designed to provide a secure and tight fit in fastening applications, making them a popular choice for both professional and DIY projects.
One of the key advantages of hex cap screws is the wide range of material options available. They can be found in various grades of steel, including grade 2, grade 5, and grade 8, each offering different levels of tensile strength and durability. Additionally, hex cap screws are available in stainless steel and silicon bronze for applications that require corrosion resistance or aesthetic appeal.
Furthermore, hex cap screws come in a variety of finish options to suit different environments and aesthetic preferences. Common finish options include zinc plating, black oxide coating, plain (uncoated), and zinc yellow. These finishes provide additional corrosion resistance, reduce friction during installation, and offer a visually appealing appearance.
Benefits of Hex Cap Screws:
- Easy installation and removal with an Allen wrench or hex key.
- Wide range of material options, including different grades of steel, stainless steel, and silicon bronze.
- Various finish options for corrosion resistance and aesthetic appeal.
- Secure and reliable fastening solution for a wide range of applications.
“Hex cap screws are the go-to choice for professionals and DIY enthusiasts alike due to their versatility, durability, and ease of use. Whether you’re working on a construction project or assembling furniture, hex cap screws provide a secure and reliable fastening solution.”
| Material | Tensile Strength | Corrosion Resistance | Finish Options |
|---|---|---|---|
| Grade 2 Steel | Low to Medium | Fair | Zinc Plating, Plain |
| Grade 5 Steel | Medium | Good | Zinc Plating, Black Oxide, Plain |
| Grade 8 Steel | High | Excellent | Zinc Plating, Black Oxide, Plain |
| Stainless Steel | Medium to High | Excellent | Plain, Zinc Plating |
| Silicon Bronze | Medium | Excellent | Plain |
Flange/Frame Bolts
Flange bolts, also known as frame bolts, are versatile fasteners commonly used in a variety of industries, including automotive, construction, and machinery. These bolts are designed with a one-piece indented hex washer head, which provides a flat, flanged bearing surface. The indented hex design allows for easy installation and provides additional grip when tightening the bolt.
One of the key features of flange/frame bolts is their galvanized finish, which offers enhanced corrosion resistance. This makes them ideal for outdoor applications or environments with high levels of moisture or exposure to harsh chemicals. The galvanized finish helps to prolong the lifespan of the bolts and ensures their durability.
Flange/frame bolts are commonly used in conjunction with matching nuts, which have tapped oversize holes to accommodate the bolt’s flanged bearing surface. This combination provides a secure and reliable connection, compensating for misaligned holes and preventing the bolt from loosening over time. It is important to use the appropriate size and type of nut to ensure proper functionality.
Whether you’re working on automotive repairs, construction projects, or heavy-duty machinery, flange/frame bolts offer a reliable fastening solution. Their unique design and galvanized finish make them a popular choice for applications that require a secure and long-lasting connection.
| Feature | Description |
|---|---|
| Head type | Indented hex washer head |
| Finish | Galvanized |
| Common applications | Automotive, construction, machinery |
| Usage | Requires matching nuts with tapped oversize holes |
| Advantages | Enhanced corrosion resistance, compensates for misaligned holes |
Hex Machine Bolts
Hex machine bolts are a versatile type of bolt that is commonly used in various applications. These bolts feature a hexagonal head and are designed to be used in drilled and tapped holes or with a hex nut for a strong and secure fastening system. One notable characteristic of hex machine bolts is that they do not have a washer face on the bearing surface, which differentiates them from other types of bolts.
One advantage of hex machine bolts is their hot dip galvanized finish, which provides excellent corrosion resistance. This makes them suitable for use in outdoor or high-moisture environments where rust and corrosion can be a concern. The hot dip galvanized finish adds an extra layer of protection to the bolts, ensuring their durability and longevity.
Hex machine bolts are available in various sizes and lengths to accommodate different applications. Whether you need to fasten materials together or secure equipment in place, hex machine bolts offer a reliable and sturdy solution. Their versatility and corrosion resistance make them a popular choice across different industries.
Applications of Hex Machine Bolts:
- Machinery and equipment assembly
- Automotive manufacturing
- Construction projects
- Structural applications
Advantages of Hex Machine Bolts:
- No washer face for a streamlined appearance
- Hot dip galvanized finish for superior corrosion resistance
- Can be used with drilled and tapped holes or with a hex nut
- Available in various sizes and lengths
Hex machine bolts are a reliable and durable fastening option for a wide range of applications. Whether you need to secure machinery, assemble equipment, or complete a construction project, these bolts offer the strength and reliability needed for the task at hand. Their hot dip galvanized finish ensures long-lasting performance, even in challenging environments.
Lag Bolts: Heavy-Duty Fasteners for Demanding Applications
Lag bolts, also known as hex lag screws, are highly durable and robust fasteners designed for heavy-duty applications. These bolts feature a hex head and spaced threads, providing excellent load-bearing capabilities and superior grip. With their strength and reliability, lag bolts are commonly used in various industries, including construction, woodworking, and structural engineering.
One of the key advantages of lag bolts is their ability to withstand high levels of stress and pressure. They are suitable for applications that require a secure and long-lasting fastening solution, such as flooring, decking, and other structural components. The spaced threads of lag bolts allow them to bite deeply into the material, providing exceptional holding power and stability.
When it comes to lag bolts, there are different material and finish options available to meet specific requirements. The material options include steel, stainless steel, and galvanized steel. Each material offers its own set of benefits in terms of strength, corrosion resistance, and aesthetic appeal. Additionally, lag bolts can be finished with coatings such as zinc or black oxide to enhance their resistance to corrosion and improve their appearance.
Lag Bolt Material and Finish Options
| Material | Finish |
|---|---|
| Steel | Zinc, Black Oxide |
| Stainless Steel | Plain, Stainless Steel |
| Galvanized Steel | Galvanized |
Choosing the right material and finish for lag bolts is essential to ensure their performance and longevity. For example, galvanized steel lag bolts offer excellent corrosion resistance and are ideal for outdoor applications where exposure to moisture is a concern. Stainless steel lag bolts, on the other hand, are highly resistant to rust and are often used in marine environments.
In summary, lag bolts are heavy-duty fasteners that provide exceptional strength and durability. Their hex head design and spaced threads make them well-suited for demanding applications that require a secure and long-lasting connection. With various material and finish options available, lag bolts can be customized to meet specific project requirements. Whether used in construction, woodworking, or other industries, lag bolts are a reliable choice for heavy-duty fastening needs.
Plow Bolts
Plow bolts are a type of bolt commonly used in heavy-duty equipment that requires a secure and reliable fastening solution. These bolts are characterized by their wide, low-profile, slightly rounded head and square neck design. The wide head provides a larger surface area and distributes the load evenly, making them suitable for applications that require a smooth head surface. Plow bolts are commonly used in construction and agricultural machinery where strength and durability are essential.
Plow bolts are available in different materials and finish options, allowing for customization based on specific requirements. Material options for plow bolts include grade 5 and grade 10, which offer high tensile strength and resistance to corrosion. The choice of material depends on the application and the level of strength required. Additionally, plow bolts come with various finish options such as zinc plating or black oxide coating, providing additional protection against rust and corrosion.
| Material | Finish |
|---|---|
| Grade 5 | Zinc Plating |
| Grade 10 | Black Oxide Coating |
When choosing plow bolts, it is important to consider the specific requirements of the application. Factors such as load capacity, environmental conditions, and longevity should be taken into account. By selecting the right material and finish options, plow bolts can ensure a secure and long-lasting fastening solution for heavy-duty equipment.
Conclusion
As we explored in this article, there is a wide range of bolt types available, each with its unique features and uses. Whether you’re working on a construction project, assembling furniture, or securing heavy-duty equipment, understanding the different types of bolts is essential to ensure a reliable and secure fastening solution.
From hex bolts and carriage bolts to dowel screws and elevator bolts, there is a bolt type suitable for every application. These bolts come in various materials, including steel, stainless steel, and galvanized options, allowing you to choose the most appropriate one based on your specific requirements.
Remember, selecting the right bolt is crucial for the success of your project. It’s essential to consider factors such as load-bearing capacity, corrosion resistance, and ease of installation. By choosing the appropriate bolt type and size, you can ensure a sturdy and durable connection that will stand the test of time.
In addition to bolts, there are many other types of fasteners and screws available, each serving a specific purpose. Whether you’re in the construction industry, automotive sector, or simply tackling a DIY project, knowing the various types of fasteners and screws will empower you to make informed decisions and complete your tasks with confidence.
FAQ
What are the different types of bolts?
The different types of bolts include hex bolts, carriage bolts, lag bolts, elevator bolts, hanger bolts, hex cap screws, flange/frame bolts, hex machine bolts, lag bolts, and plow bolts.
What is a hex bolt?
A hex bolt has a six-sided head and is the most common type of bolt.
What is a carriage bolt?
A carriage bolt has a round head and a square neck under the head to prevent the bolt from turning.
What is a lag bolt?
A lag bolt, also known as a lag screw, has a hex head and spaced threads. It is used for heavy-duty applications.
What are standard carriage bolts?
Standard carriage bolts have a square neck under the head and come in various materials and finish options. The square neck is designed to keep the bolt from turning as a nut is tightened.
What are ribbed neck carriage bolts?
Ribbed neck carriage bolts have vertical ribs under the head instead of a square neck. The ribs help prevent the bolt from turning as a nut is tightened or removed.
What are dowel screws?
Dowel screws are two-sided fasteners with wood screw threads and points at both ends. They are used for fastening two pieces of wood together permanently.
What are elevator bolts?
Elevator bolts have a wide, countersunk flat head and a square neck under the head. They are commonly used in conveyor systems, such as elevators.
What are hanger bolts?
Hanger bolts have threading on both ends, with one end having wood screw type threads and the other end having machine screw threads. They are designed for suspending electrical wiring, sheet metal, and other applications.
What are hex cap screws?
Hex cap screws are the most common type of hex head bolts. They have a six-sided head and come in various sizes, materials, and finish options.
What are flange/frame bolts?
Flange/frame bolts have a one-piece indented hex washer head with a flat, flanged bearing surface. They are commonly used in the automotive industry and for compensating misaligned holes.
What are hex machine bolts?
Hex machine bolts do not feature a washer face on the bearing surface. They are used in drilled and tapped holes or with a hex nut for a strong fastening system.
What are lag bolts?
Lag bolts, also known as hex lag screws, have a hex head and spaced threads. They are extremely sturdy and are used for heavy-duty applications.
What are plow bolts?
Plow bolts have a wide, low-profile, slightly rounded head and a square neck. They are used in heavy-duty equipment that requires a smooth head surface.
