...
2025-08-15 07:34
483
Another advantage of the pneumatic jack hammer is its durability. Constructed from high-quality materials, it can withstand heavy use without breaking down Constructed from high-quality materials, it can withstand heavy use without breaking down
Constructed from high-quality materials, it can withstand heavy use without breaking down Constructed from high-quality materials, it can withstand heavy use without breaking down
pneumatic jack hammer price. The replaceable tips also ensure that the tool stays sharp and effective, even after extended periods of use.
...
2025-08-15 07:24
1110
...
2025-08-15 07:17
747
Vats and solid flooring
...
2025-08-15 06:42
930
The realm of construction and mining has seen a significant metamorphosis with the advent of rock drill extension rods. These rods have not only revolutionized the way we penetrate the earth's crust but have also become a cornerstone in enhancing efficiency and productivity in heavy-duty operations.
...
2025-08-15 06:13
2717
GRP (Glass Reinforced Plastic) car body has become increasingly popular in the automotive industry due to its many advantages over traditional metal bodies. GRP car bodies are made from a composite material that combines glass fibers with a plastic resin, resulting in a lightweight yet strong and durable structure.
...
2025-08-15 05:59
779
In the realm of modern agriculture, the use of group storage tanks has emerged as a pivotal innovation that significantly enhances crop yield and overall efficiency. These tanks, typically made of high-quality plastic or steel, are designed to store large quantities of water, providing farmers with a reliable source of irrigation during periods of scarcity.
...
2025-08-15 05:53
173
Hand held jack hammers are also designed for ease of use. Many models feature ergonomic handles and adjustable settings, allowing users to operate the machine comfortably and efficiently. This user-friendly design can help reduce operator fatigue, increasing productivity and safety on the job site.
...
2025-08-15 05:46
576
The realm of construction and mining has seen a significant metamorphosis with the advent of rock drill extension rods. These rods have not only revolutionized the way we penetrate the earth's crust but have also become a cornerstone in enhancing efficiency and productivity in heavy-duty operations.
...
2025-08-15 05:45
971
FRP grating is versatile and can often be used in various ways. But FRP grating is also explicitly used for particular projects and environments.
...
2025-08-15 05:40
2613
- The aviation industry is a complex and highly regulated field that demands precision and reliability in all aspects of aircraft design and operation. One such critical component that plays a vital role in ensuring the safety and efficiency of aircraft is the drilling wing tip screws. These small yet essential fasteners are used to secure various components of the wing, including the flap and aileron systems, to the wing spar. In this article, we will delve into the significance of drilling wing tip screws and explore their design, functionality, and maintenance requirements.
1. Ease of Use One of the most significant benefits of 2% self-drilling screws is their simplicity in installation. Users do not need to pre-drill holes, saving time and effort during projects. This feature is particularly advantageous in situations where speed and efficiency are critical.
- One common application for shear studs is in the construction of concrete slabs. In this context, the studs are used to transfer shear forces from the slab to the supporting structure, such as beams or columns. By doing so, they help to prevent the slab from cracking or deforming under heavy loads.
- Foundation bolts are an essential component in the construction industry, used to secure heavy machinery and structures to a concrete foundation. One common type of foundation bolt is the bent foundation bolt, which is designed with a bent end to provide additional support and stability.
- Conclusion
- Another notable aspect is their user-friendliness. With no need for specialized tools or skills, anyone can install self-drilling hooks with ease. This has made them a popular choice among homeowners, hobbyists, and professionals alike, democratizing the process of fastening.
- Another significant advantage of heavy-duty tek screws is their thread design. These screws feature a unique thread pattern that allows them to grip onto materials more securely. The threads are also designed to withstand higher levels of torque, ensuring that they can withstand greater loads without stripping or breaking.
- Another significant benefit is their cost-effectiveness
- Threaded rod chemical anchors consist of a steel rod with external threads that is coated with a special resin or grout. When the anchor is inserted into a pre-drilled hole and the nut is tightened, the chemicals react with the moisture in the substrate, causing it to expand and create a strong bond. This bond is capable of supporting heavy loads, making these anchors suitable for a wide range of applications.
2. Versatility These anchors are suitable for various materials, including drywall, plaster, concrete, and brick. This versatility makes them a go-to option for various projects, from home improvement to professional construction.
- In woodworking, 3-inch self-drilling screws are ideal for large projects such as building furniture, decks, or pergolas. They can securely join thick wooden planks without splitting the wood. In construction, they are used for roofing, framing, and sheathing applications. Metal fabrication also greatly benefits from these screws, particularly in joining steel or aluminum sheets, as they can easily and secure the materials together.
Hex head bolts are a type of fastener characterized by their six-sided (hexagonal) head, which allows for easy gripping and torque application using a wrench. Typically made from materials like carbon steel, stainless steel, or alloy steel, these bolts come in various sizes and grades, each designed to meet specific strength and durability requirements. The hexagonal shape of the head provides a larger surface area for handling, making it easier to achieve the necessary clamping force when tightening.
- The durability of EPDM washered fasteners is not just about the material itself but also the design. The washer's shape, thickness, and durometer can be customized to suit specific application requirements, ensuring optimal performance in diverse conditions. Moreover, their ease of installation and compatibility with different types of fasteners, including screws, bolts, and nuts, further enhance their utility.
- The combination of a wedge and bolt can be particularly effective in situations where both separation and joining are required
4. Durability Made from materials such as stainless steel, zinc-plated steel, or other corrosion-resistant materials, expandable anchors are designed to withstand environmental factors. This durability ensures that they maintain their integrity over time, even in harsh conditions, making them a long-term solution for anchoring needs.
- Another advantage of stainless steel self-threading screws is their ease of use. Because they create their own threads as they are being driven into place, there is no need to pre-drill holes or tap threads in the material before installing the screws. This can save a significant amount of time and effort during the installation process, making stainless steel self-threading screws a convenient and efficient choice for builders and contractors.
- The Art of Expanding Hollow Wall Anchors
1. Time Efficiency One of the most significant advantages of self-drilling screws is the time saved during installation. The ability to drill and fasten in one motion allows contractors and DIY enthusiasts to complete tasks more quickly, increasing overall productivity.
While black phosphate drywall screws offer numerous advantages, it is essential to consider the specific requirements of each project. They are best suited for interior applications where exposure to moisture is limited. In external environments or areas subjected to heavy moisture, specialized screws designed for such conditions may be preferable.
Understanding Self-Drilling Bolts
- One of the most recognizable features of the butterfly molly is its vibrant coloration. These fish come in a variety of colors, including black, silver, orange, and gold, which can add a pop of color to your aquarium. The butterfly molly's colors are not only visually appealing but also serve as a form of camouflage in the wild, helping them to blend in with their surroundings and avoid predators.
- The primary advantage of these anchors lies in their ease of use. Unlike traditional anchors, which necessitate selecting the correct drill bit size and then drilling a pilot hole, self-drilling anchors can be directly screwed into the wall with a simple screwdriver or power drill. This not only saves time but also reduces the chances of errors and damage to the wall.
- Understanding the Role of Headed Shear Studs in Structural Engineering
- Introduction
- Next, the resin is mixed according to the specified ratio
fixing resin anchors. This usually involves pouring the resin into the hardener, then stirring thoroughly until a uniform color is achieved. The mixture must be applied quickly, as resin begins to set soon after mixing. 14g Tek screws are self-drilling screws designed for fastening materials in various construction projects. The 14g denotes the gauge of the screw, which translates to a diameter of approximately 0.080 inches (2.3 mm). Tek screws are particularly known for their sharp, self-drilling points, which allow them to drill into materials without the need for a pre-drilled pilot hole.
The emergence of the wall anchor butterfly is a sight to behold. As they unfurl their damp wings for the first time, they reveal the intricate designs that will captivate observers. These butterflies play an essential role in their ecosystems, primarily through pollination. While sipping nectar from flowers, wall anchor butterflies inadvertently transfer pollen from one bloom to another, facilitating plant reproduction. This symbiotic relationship highlights the interconnectedness of life; without such pollinators, many plants would struggle to reproduce, leading to a cascade of ecological consequences.
- Furthermore, the use of M8 bolts in double-ended studs can also improve the durability of vehicles
What is a CSK Head Self-Drilling Screw?
- In addition to their durability and strength, stainless steel structural bolts also offer excellent corrosion resistance
stainless steel structural bolts. This means that they can withstand exposure to moisture, humidity, and other corrosive agents without losing their structural integrity. This is particularly important in environments where corrosion is a common problem, such as coastal regions or industrial facilities. - Self-drilling screws have become increasingly popular in various construction and DIY projects due to their convenience and efficiency. With a pointed tip and cutting flutes, these screws eliminate the need for pre-drilling a hole before installation, saving time and effort. Among the different types of self-drilling screws available in the market, the 5% and 16% varieties stand out for their specific applications and advantages.
When it comes to woodworking, choosing the right fasteners is fundamental to achieving durable and aesthetically pleasing results. Among the plethora of options available, hex screws stand out as versatile and highly effective choices for various applications. Their design and functionality make them particularly well-suited for wood, providing both strength and ease of use.
- Another advantage of these screws is their strength and durability
- ,、。,。,,。Stainless Steel Bracing A Durable Solution for Strength and Beauty
- The secret behind the self-drilling capability lies in the screw's point. It is typically equipped with a sharp, thread-forming tip, often with a drill point angle between 118 and 135 degrees. This unique design allows the screw to pierce through metal, wood, and even plastic without requiring a separate drilling tool. The,,。
What Are Hex Screws?
- The primary advantage of self-drilling anchors lies in their efficiency. Traditional anchor installation methods often require multiple steps, including drilling, cleaning the hole, and inserting the anchor. In contrast, self-drilling anchors combine these functions into one, reducing time, labor, and overall project costs. This makes them particularly advantageous for projects where time is of the essence or where access to drilling equipment is limited.
- As the final chapter of my academic journey draws to a close, I find myself standing at the precipice of a new beginning - the end of my studies. This pivotal moment, marked by a mixture of excitement and trepidation, is not merely the termination of one phase but the commencement of another. It's an end that signifies the transition from being a student to stepping into the real world, a world where the lessons learned in the classroom will be tested in the crucible of life.
- Another significant advantage of resin anchors is their versatility. They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects
They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects
resin anchor bolts for concrete. Additionally, they can be installed quickly and easily, often requiring no special tools or equipment beyond a drill and screwdriver. 4. Versatility Countersunk self-drilling screws can be used in a wide variety of materials, including metals, plastics, and composites. They are suitable for both indoor and outdoor applications, making them an incredibly versatile choice for builders and manufacturers alike.
1. Choose the Right Size Always select anchors that match the load you expect to place on them and the thickness of the material being anchored.
- Installing steel lateral bracing is a precise process that requires careful planning and execution
- Aircraft structural fasteners play an indispensable role in the assembly and integrity of modern aircraft. These small but mighty components are the unsung heroes of aerospace engineering, holding together the complex structures that enable flight. They are the connectors, the anchors, and the safeguards against the rigorous forces experienced during flight.
- M8 Self-Drilling Screws Revolutionizing Construction Efficiency
- Advantages of Metric Self-Drilling Screws
- Versatility
- Butterfly anchors also offer excellent versatility, making them suitable for use in a wide range of marine environments
Applications of Self-Drilling Galvanized Screws
Additionally, bracing elements contribute to the overall aesthetic of a building. Architects often incorporate visible bracing into their designs, transforming a structural necessity into a defining feature of the building's appearance. Creative integration of bracing systems not only serves to enhance stability but also adds to the architectural character of the structure.
bracing steel beams

Another advantage of the pneumatic jack hammer is its durability. Constructed from high-quality materials, it can withstand heavy use without breaking down Constructed from high-quality materials, it can withstand heavy use without breaking down
Constructed from high-quality materials, it can withstand heavy use without breaking down Constructed from high-quality materials, it can withstand heavy use without breaking down
pneumatic jack hammer price. The replaceable tips also ensure that the tool stays sharp and effective, even after extended periods of use.
...
2025-08-15 07:17
747
Vats and solid flooring
...
2025-08-15 06:42
930
The realm of construction and mining has seen a significant metamorphosis with the advent of rock drill extension rods. These rods have not only revolutionized the way we penetrate the earth's crust but have also become a cornerstone in enhancing efficiency and productivity in heavy-duty operations.
...
2025-08-15 06:13
2717
GRP (Glass Reinforced Plastic) car body has become increasingly popular in the automotive industry due to its many advantages over traditional metal bodies. GRP car bodies are made from a composite material that combines glass fibers with a plastic resin, resulting in a lightweight yet strong and durable structure.
...
2025-08-15 05:59
779
In the realm of modern agriculture, the use of group storage tanks has emerged as a pivotal innovation that significantly enhances crop yield and overall efficiency. These tanks, typically made of high-quality plastic or steel, are designed to store large quantities of water, providing farmers with a reliable source of irrigation during periods of scarcity.
...
2025-08-15 05:53
173
Hand held jack hammers are also designed for ease of use. Many models feature ergonomic handles and adjustable settings, allowing users to operate the machine comfortably and efficiently. This user-friendly design can help reduce operator fatigue, increasing productivity and safety on the job site.
...
2025-08-15 05:46
576
The realm of construction and mining has seen a significant metamorphosis with the advent of rock drill extension rods. These rods have not only revolutionized the way we penetrate the earth's crust but have also become a cornerstone in enhancing efficiency and productivity in heavy-duty operations.
...
2025-08-15 05:45
971
FRP grating is versatile and can often be used in various ways. But FRP grating is also explicitly used for particular projects and environments.
...
2025-08-15 05:40
2613
Vats and solid flooring
The realm of construction and mining has seen a significant metamorphosis with the advent of rock drill extension rods. These rods have not only revolutionized the way we penetrate the earth's crust but have also become a cornerstone in enhancing efficiency and productivity in heavy-duty operations.
GRP (Glass Reinforced Plastic) car body has become increasingly popular in the automotive industry due to its many advantages over traditional metal bodies. GRP car bodies are made from a composite material that combines glass fibers with a plastic resin, resulting in a lightweight yet strong and durable structure.
In the realm of modern agriculture, the use of group storage tanks has emerged as a pivotal innovation that significantly enhances crop yield and overall efficiency. These tanks, typically made of high-quality plastic or steel, are designed to store large quantities of water, providing farmers with a reliable source of irrigation during periods of scarcity.
Hand held jack hammers are also designed for ease of use. Many models feature ergonomic handles and adjustable settings, allowing users to operate the machine comfortably and efficiently. This user-friendly design can help reduce operator fatigue, increasing productivity and safety on the job site.
The realm of construction and mining has seen a significant metamorphosis with the advent of rock drill extension rods. These rods have not only revolutionized the way we penetrate the earth's crust but have also become a cornerstone in enhancing efficiency and productivity in heavy-duty operations.
FRP grating is versatile and can often be used in various ways. But FRP grating is also explicitly used for particular projects and environments.
- The aviation industry is a complex and highly regulated field that demands precision and reliability in all aspects of aircraft design and operation. One such critical component that plays a vital role in ensuring the safety and efficiency of aircraft is the drilling wing tip screws. These small yet essential fasteners are used to secure various components of the wing, including the flap and aileron systems, to the wing spar. In this article, we will delve into the significance of drilling wing tip screws and explore their design, functionality, and maintenance requirements.
1. Ease of Use One of the most significant benefits of 2% self-drilling screws is their simplicity in installation. Users do not need to pre-drill holes, saving time and effort during projects. This feature is particularly advantageous in situations where speed and efficiency are critical.
- One common application for shear studs is in the construction of concrete slabs. In this context, the studs are used to transfer shear forces from the slab to the supporting structure, such as beams or columns. By doing so, they help to prevent the slab from cracking or deforming under heavy loads.
- Foundation bolts are an essential component in the construction industry, used to secure heavy machinery and structures to a concrete foundation. One common type of foundation bolt is the bent foundation bolt, which is designed with a bent end to provide additional support and stability.
- Conclusion
- Another notable aspect is their user-friendliness. With no need for specialized tools or skills, anyone can install self-drilling hooks with ease. This has made them a popular choice among homeowners, hobbyists, and professionals alike, democratizing the process of fastening.
- Another significant advantage of heavy-duty tek screws is their thread design. These screws feature a unique thread pattern that allows them to grip onto materials more securely. The threads are also designed to withstand higher levels of torque, ensuring that they can withstand greater loads without stripping or breaking.
- Another significant benefit is their cost-effectiveness
- Threaded rod chemical anchors consist of a steel rod with external threads that is coated with a special resin or grout. When the anchor is inserted into a pre-drilled hole and the nut is tightened, the chemicals react with the moisture in the substrate, causing it to expand and create a strong bond. This bond is capable of supporting heavy loads, making these anchors suitable for a wide range of applications.
2. Versatility These anchors are suitable for various materials, including drywall, plaster, concrete, and brick. This versatility makes them a go-to option for various projects, from home improvement to professional construction.
- In woodworking, 3-inch self-drilling screws are ideal for large projects such as building furniture, decks, or pergolas. They can securely join thick wooden planks without splitting the wood. In construction, they are used for roofing, framing, and sheathing applications. Metal fabrication also greatly benefits from these screws, particularly in joining steel or aluminum sheets, as they can easily and secure the materials together.
Hex head bolts are a type of fastener characterized by their six-sided (hexagonal) head, which allows for easy gripping and torque application using a wrench. Typically made from materials like carbon steel, stainless steel, or alloy steel, these bolts come in various sizes and grades, each designed to meet specific strength and durability requirements. The hexagonal shape of the head provides a larger surface area for handling, making it easier to achieve the necessary clamping force when tightening.
- The durability of EPDM washered fasteners is not just about the material itself but also the design. The washer's shape, thickness, and durometer can be customized to suit specific application requirements, ensuring optimal performance in diverse conditions. Moreover, their ease of installation and compatibility with different types of fasteners, including screws, bolts, and nuts, further enhance their utility.
- The combination of a wedge and bolt can be particularly effective in situations where both separation and joining are required
4. Durability Made from materials such as stainless steel, zinc-plated steel, or other corrosion-resistant materials, expandable anchors are designed to withstand environmental factors. This durability ensures that they maintain their integrity over time, even in harsh conditions, making them a long-term solution for anchoring needs.
- Another advantage of stainless steel self-threading screws is their ease of use. Because they create their own threads as they are being driven into place, there is no need to pre-drill holes or tap threads in the material before installing the screws. This can save a significant amount of time and effort during the installation process, making stainless steel self-threading screws a convenient and efficient choice for builders and contractors.
- The Art of Expanding Hollow Wall Anchors
1. Time Efficiency One of the most significant advantages of self-drilling screws is the time saved during installation. The ability to drill and fasten in one motion allows contractors and DIY enthusiasts to complete tasks more quickly, increasing overall productivity.
While black phosphate drywall screws offer numerous advantages, it is essential to consider the specific requirements of each project. They are best suited for interior applications where exposure to moisture is limited. In external environments or areas subjected to heavy moisture, specialized screws designed for such conditions may be preferable.
Understanding Self-Drilling Bolts
- One of the most recognizable features of the butterfly molly is its vibrant coloration. These fish come in a variety of colors, including black, silver, orange, and gold, which can add a pop of color to your aquarium. The butterfly molly's colors are not only visually appealing but also serve as a form of camouflage in the wild, helping them to blend in with their surroundings and avoid predators.
- The primary advantage of these anchors lies in their ease of use. Unlike traditional anchors, which necessitate selecting the correct drill bit size and then drilling a pilot hole, self-drilling anchors can be directly screwed into the wall with a simple screwdriver or power drill. This not only saves time but also reduces the chances of errors and damage to the wall.
- Understanding the Role of Headed Shear Studs in Structural Engineering
- Introduction
- Next, the resin is mixed according to the specified ratio
fixing resin anchors. This usually involves pouring the resin into the hardener, then stirring thoroughly until a uniform color is achieved. The mixture must be applied quickly, as resin begins to set soon after mixing.
14g Tek screws are self-drilling screws designed for fastening materials in various construction projects. The 14g denotes the gauge of the screw, which translates to a diameter of approximately 0.080 inches (2.3 mm). Tek screws are particularly known for their sharp, self-drilling points, which allow them to drill into materials without the need for a pre-drilled pilot hole.
The emergence of the wall anchor butterfly is a sight to behold. As they unfurl their damp wings for the first time, they reveal the intricate designs that will captivate observers. These butterflies play an essential role in their ecosystems, primarily through pollination. While sipping nectar from flowers, wall anchor butterflies inadvertently transfer pollen from one bloom to another, facilitating plant reproduction. This symbiotic relationship highlights the interconnectedness of life; without such pollinators, many plants would struggle to reproduce, leading to a cascade of ecological consequences.
- Furthermore, the use of M8 bolts in double-ended studs can also improve the durability of vehicles
What is a CSK Head Self-Drilling Screw?
- In addition to their durability and strength, stainless steel structural bolts also offer excellent corrosion resistance
stainless steel structural bolts. This means that they can withstand exposure to moisture, humidity, and other corrosive agents without losing their structural integrity. This is particularly important in environments where corrosion is a common problem, such as coastal regions or industrial facilities.
- Self-drilling screws have become increasingly popular in various construction and DIY projects due to their convenience and efficiency. With a pointed tip and cutting flutes, these screws eliminate the need for pre-drilling a hole before installation, saving time and effort. Among the different types of self-drilling screws available in the market, the 5% and 16% varieties stand out for their specific applications and advantages.
When it comes to woodworking, choosing the right fasteners is fundamental to achieving durable and aesthetically pleasing results. Among the plethora of options available, hex screws stand out as versatile and highly effective choices for various applications. Their design and functionality make them particularly well-suited for wood, providing both strength and ease of use.
- Another advantage of these screws is their strength and durability
- ,、。,。,,。Stainless Steel Bracing A Durable Solution for Strength and Beauty
- The secret behind the self-drilling capability lies in the screw's point. It is typically equipped with a sharp, thread-forming tip, often with a drill point angle between 118 and 135 degrees. This unique design allows the screw to pierce through metal, wood, and even plastic without requiring a separate drilling tool. The,,。
What Are Hex Screws?
- The primary advantage of self-drilling anchors lies in their efficiency. Traditional anchor installation methods often require multiple steps, including drilling, cleaning the hole, and inserting the anchor. In contrast, self-drilling anchors combine these functions into one, reducing time, labor, and overall project costs. This makes them particularly advantageous for projects where time is of the essence or where access to drilling equipment is limited.
- As the final chapter of my academic journey draws to a close, I find myself standing at the precipice of a new beginning - the end of my studies. This pivotal moment, marked by a mixture of excitement and trepidation, is not merely the termination of one phase but the commencement of another. It's an end that signifies the transition from being a student to stepping into the real world, a world where the lessons learned in the classroom will be tested in the crucible of life.
- Another significant advantage of resin anchors is their versatility. They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects
They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects They can be used in a variety of materials, including steel, wood, and masonry, making them a versatile solution for a broad range of construction projects
resin anchor bolts for concrete. Additionally, they can be installed quickly and easily, often requiring no special tools or equipment beyond a drill and screwdriver.
4. Versatility Countersunk self-drilling screws can be used in a wide variety of materials, including metals, plastics, and composites. They are suitable for both indoor and outdoor applications, making them an incredibly versatile choice for builders and manufacturers alike.
1. Choose the Right Size Always select anchors that match the load you expect to place on them and the thickness of the material being anchored.
- Installing steel lateral bracing is a precise process that requires careful planning and execution
- Aircraft structural fasteners play an indispensable role in the assembly and integrity of modern aircraft. These small but mighty components are the unsung heroes of aerospace engineering, holding together the complex structures that enable flight. They are the connectors, the anchors, and the safeguards against the rigorous forces experienced during flight.
- M8 Self-Drilling Screws Revolutionizing Construction Efficiency
- Advantages of Metric Self-Drilling Screws
- Versatility
- Butterfly anchors also offer excellent versatility, making them suitable for use in a wide range of marine environments
Applications of Self-Drilling Galvanized Screws
Additionally, bracing elements contribute to the overall aesthetic of a building. Architects often incorporate visible bracing into their designs, transforming a structural necessity into a defining feature of the building's appearance. Creative integration of bracing systems not only serves to enhance stability but also adds to the architectural character of the structure.
bracing steel beams