In the fastener industry, stud bolts play a critical role in ensuring structural integrity across a wide range of industries—from oil and gas to construction and manufacturing. For global distributors and industrial procurement teams, understanding the different types of stud bolts and their specific applications is key to sourcing the right product for the job.
What Is a Stud Bolt?
A stud bolt is a threaded rod with no head, used in combination with two nuts. These bolts provide superior clamping force and are especially suitable for high-pressure, high-temperature environments. They are often used in flange connections, valves, pumps, and pipeline systems.
Common Types of Stud Bolts
1. Full Threaded Stud Bolts
These are threaded along their entire length and are commonly used in low-pressure applications. They are easy to install and ideal for general-purpose fastening needs.
2. Double-End Stud Bolts
Featuring threads on both ends and an unthreaded shank in the middle, double-end studs are widely used in flange bolting in piping systems. One end is screwed into the component, while the other receives a nut.
3. Tap-End Stud Bolts
These bolts have threads of different lengths on each end, often used in machinery and heavy equipment where one end is permanently fixed.
4. Continuous Thread Stud Bolts
Similar to full-threaded studs but typically used in tensioning applications, such as with structural steel or pressure vessels.
5. Welded Stud Bolts
Designed to be welded to a surface, commonly found in steel structure fabrication or shipbuilding.
Materials and Coatings
At Hardhawk Fastener, we manufacture stud bolts in a variety of materials to meet industrial specifications:
- Carbon Steel (Grade B7, B7M)
- Stainless Steel (SS304, SS316, SS316L)
- Alloy Steel and Duplex Steel
- Hot-dip galvanized, zinc-plated, PTFE coated options
Applications of Stud Bolts
| Industry | Common Use |
|---|---|
| Oil & Gas | Pipeline flanges, pressure vessels |
| Construction | Structural connections |
| Petrochemical | Heat exchangers, reactors |
| Energy | Turbines, boilers, valve assemblies |
| Marine | Hull fastening, ship deck equipment |
Stud bolts offer reliable fastening strength, excellent alignment properties, and better load distribution—making them a preferred choice for critical installations.
Why Choose Hardhawk as Your Stud Bolt Supplier?
With over a decade of manufacturing experience and a strong export network, Hardhawk Fastener delivers precision-engineered stud bolts that meet GB, ASTM, DIN, and ISO standards. We serve bulk buyers, wholesale importers, and OEM clients across 60+ countries.
🔗 Explore our full range of stud bolts here
Let us help you find the perfect fastening solution—reliable, customizable, and built to last.