Flange Stud Bolt

A flange stud is an externally threaded rod utilized to join two flanged parts like pipes or pressure vessels in industrial applications. It has threads on both ends and can be utilized with two heavy hex nuts to exert uniform clamping pressure on the flange faces. It has two ends with threads and can be used with two heavy hex nuts to apply even clamping pressure to the flange faces. The tight, non rotating fastening that flange studs provide is especially useful in high temperature, high pressure and vibration scenarios.

Stud bolts are used in bolted flange connections to connect two mating flanges with the help of nuts on both ends. They are used heavily in oil and gas, petrochemical, power generation and offshore piping sectors. These fasteners provide even stress distribution required for maintaining gasket sealing integrity in high pressure and critical service situations.

The main difference is in their design and application. A typical bolt contains a head and is generally applied in through hole or tapped applications. A flange stud (or stud bolt), however, does not have a head and includes threads on both ends, utilized with nuts for clamping flanges together. Flange studs are utilized in static, high-load connections where rotational torque should be avoided and even clamping is required for sealing.