Fasteners and fixings come in all shapes and sizes and are used across multiple industries to make safe and secure connections. While they may all look similar, there are important differences that make each type of fastener ideal for specific applications.
Studs are threaded fasteners that don’t have a head, making them ideal for use in blind holes or areas where a traditional bolt head would be difficult to access. They are also less likely to loosen over time, making them an excellent choice for applications where vibration is a concern.
Engineering studs are a type of fastener commonly used in high-pressure and high-temperature environments such as the offshore and petrochemical industries. They are made from high-strength materials such as stainless steel and Inconel and are designed to resist corrosion.
Bolts, on the other hand, have a head that protrudes from one end of the fastener. This makes them easier to install and remove, but it also means that they’re more likely to loosen over time. Bolts are typically used in applications where there is less concern about vibration, such as in low-pressure piping.
Structural bolts are designed to create a rigid connection between two pieces of metal. They are typically used to connect steel beams to support on and offshore structures where they must meet strict engineering standards to handle the high loads and stresses that are common in the industry. They must also be able to withstand the harsh conditions of the offshore environment.
Pipe bolts are used to secure pipes to flanges or other components. They come in a variety of sizes and shapes, depending on the application, and are typically made from high-strength steel, to withstand high pressure and temperatures. Pipe bolts are an important part of the offshore oil and gas industry, critical for ensuring safety and reliability.
Some common bolts used in this industry include:
- Hanger bolts: Hanger bolts are used to suspend pipes from overhead structures. They have a threaded shank with a pointed end and a washer-like head.
- Joint bolts: Joint bolts are used to join two pieces of pipe together. They have a threaded shank and a square or hexagonal head.
- Tie bolts: Tie bolts are used to secure joints between pipes and flanges. They have a threaded shank and a flat or countersunk head.
Both studs and bolts are available in a variety of materials, including stainless steel, carbon steel, and nickel alloys. Each has its own set of benefits, so it is important to choose the right one for the application at hand.
For example, stainless steel is commonly used for oil and gas applications because of its corrosion-resistant properties. This makes it highly suitable for applications where structures, plant and equipment are continuously exposed to moisture or other elements; that is why it is so widely used in construction, marine settings, and other outdoor environments.
Carbon steel is less expensive and easier to work with than stainless steel, but it is more susceptible to corrosion. As a result, it is often used in applications where corrosion is not a major concern, such as in low-pressure piping.
Nickel alloys are more expensive than both stainless steel and carbon steel, but they offer the best combination of strength, ductility, and corrosion resistance. As a result, they are often used in high-pressure applications or in areas where corrosion is a major concern.
When it comes to choosing the right fastener for the job, it is important to consider the specific requirements of the application. Structural bolts, engineering studs, flange and pipe bolts are just some of the many types of fasteners available on the market, each with its own unique set of features and benefits.
As fasteners and fixings come in a wide range of materials and grades from stainless steel to nickel and titanium alloys it is again important to understand the needs of the application before making a purchase.
At Prosper Fasteners and Fixings we have years of experience advising on the correct type of fasteners and fixings for oil and gas, petrochemical and fabrication projects. Compliance with international standards ISO, DIN, British Standard, ASTM/ASME, and SA is vital in industries where safety cannot be compromised. We can advise on the most appropriate fasteners or fixings for your project, ensuring they comply with all relevant standards.
Contact us today to discuss your requirements.