Introduction to Studs
A stud is a metal rod or shaft with threads on both sides. Usually, the rod is longer but depending upon the requirement the size can vary. A stud is an external threaded headless fastener. In other words, we can say that one end of the stud is connected to the tapering part and the other end to the standard nut.
Unlike screws and bolts, studs do not have heads that require tightening. While installing studs they don’t require any external force to torque it down and one is able to install studs manually.
Studs are relatively larger than bolts and screws, thus they go much deeper inside the threaded hole of the connected application and are actually going close to the portion of the thread that has no torque applied to them.
Screws and bolts have two forces applied to them: rotational force and linear force which would give an inaccurate torque reading. Studs have no rotational force applied, hence we can get a more accurate reading.
Studs are categorized into three main types: fully threaded stud bolts, tap end stud bolts, and double end stud bolts. Depending upon the application studs are made from various materials to satisfy the operation requirements. Since there’s no stretching in the threads of the studs they are able to produce repeatable clamping force, thus lasting longer.
Studs are often used for fastening flanges. The quality of flange for connections is determined by the holes in the flange diameter and the length of the study is determined by the flange type and pressure class.
Studs prevent leakage of fluids through holes in machines. They are also used in the assembling of heavy materials such as turbines, tanks, cylindrical heads, and gaskets.
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