Stud Bolts: What They Are and Where They're Used
Stud bolts are threaded rods used where a bolt cannot pass through both parts, or where a flange needs a uniform clamp. They are common in piping, pressure vessels and structural steel. This guide explains what stud bolts are and where they are used.
What Is a Stud Bolt?
A stud bolt is a length of threaded rod, usually with threads at both ends or along its full length. It is used with two nuts: one on each end, or one in a tapped hole. Studs allow a joint to be clamped evenly and removed without disturbing the parts.
Types of Stud Bolts
Fully threaded stud: thread along the whole length.
Double-end stud: threads at both ends with a plain shank in the middle.
Tap-end stud: one end threads into a tapped hole, the other takes a nut.
Where Stud Bolts Are Used
Stud bolts are standard in flange connections for pipes, valves and pressure vessels, where they clamp a gasket evenly. They are also used in structural steel, machinery and heavy equipment.
How to Choose a Stud Bolt
Match the thread and diameter to the flange or tapped hole.
Choose the length so both nuts fully engage.
Select the material and coating for the environment.
Use the correct grade for the pressure and temperature.
FAQ
What is the difference between a stud bolt and a bolt?
A bolt has a head and is tightened with a nut. A stud has no head and uses a nut at each end, or threads into a tapped hole.
Are stud bolts stronger than bolts?
For flange joints, studs clamp more evenly and are easier to remove. Strength depends on material and grade, not the shape alone.
Stud Bolts for Flanges and Steel
SolidLink supplies threaded studs and fasteners in galvanized and stainless steel. Browse our bolts or fasteners category, or contact us for a quote.
