SET SCREW Meaning and
Definition
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A set screw is a small threaded fastener typically made of metal that is used to secure or hold two or more components together. It is also commonly known as a grub screw or a setscrew. The primary characteristic of a set screw is its internal threads, which allow it to be tightened into a threaded hole or against a shaft to create a secure connection.
The purpose of a set screw is to prevent slippage or movement between the joined components. It applies compressive force to the surface of the component it is in contact with, creating friction that keeps the parts in place. Set screws are commonly used in various applications, such as machinery, electronics, automobiles, and furniture.
They are available in different sizes, lengths, and thread types to accommodate specific needs. The most common types of set screws include socket set screws and slotted set screws. Socket set screws feature a recessed hexagonal socket in their head, allowing them to be tightened using an Allen or hex key. Slotted set screws, on the other hand, have a straight slot across the top of their head, enabling them to be tightened using a screwdriver.
In summary, a set screw is a small threaded fastener used to hold or secure components together by creating friction. It plays a crucial role in preventing movement, ensuring stability, and maintaining the integrity of various mechanical and non-mechanical systems.
Etymology of SET SCREW
The term "set screw" is a compound term comprising of two words: "set" and "screw".
The word "set" in this context derives from the Old English word "settan" or "sittan", which means "to place" or "to set". Over time, it evolved to refer to the act of securing or fixing something in position.
The term "screw" has a history that dates back to the late 14th century and comes from the Old French word "escroue". This word ultimately traces its origin to the Latin word "scrofa", which means a sow or a female pig. This Latin word was used because of the similarity between the shape of a pig's curly tail and the spiral shape of a screw.
When combined, "set screw" refers to a type of screw used to secure an object in place or to prevent its movement within a specific mechanism.
