ThePipingMart Blog Fasteners Types of Grooved Pins and Their Applications

Types of Grooved Pins and Their Applications

Grooved Pins

Grooved pins are essential components for a wide range of industries and applications. They are especially useful when joining two parts but don’t want to use screws or nails. These pins help you create a secure connection that won’t come apart easily. This blog will explore the different types of grooved pins and their applications. By the end of this article, you will better understand what grooved pins are, how they work, and when to use which type.

Types of Grooved Pins and Their Applications

Spiral Grooved Pins

A spiral grooved pin is a type of fastener with a helical groove design that runs the length of the pin. The shape and direction of the grooves provide a locking action that keeps the pin in place. This type of grooved pin is suitable for use in shear applications, where the load is perpendicular to the pin’s axis. Spiral grooved pins are often used in manufacturing, automotive, and aerospace industries.

Straight Grooved Pins

Straight grooved pins have multiple straight grooves along the sides of the pin. They are designed to be pressed into a hole slightly smaller than the diameter of the pin. The grooves act as a locking mechanism to prevent the pin from sliding back out. These pins are used for alignment purposes and are often found in furniture, appliances, and electronics.

Knurled Grooved Pins

Knurled grooved pins have small ridges all around the surface of the pin. The ridges help the pin stay in place by creating friction against the surrounding material. These pins are ideal for high-speed applications, providing a secure fit that won’t come off easily. Knurled grooved pins are commonly used in high-performance engines, transmissions, and other mechanical applications.

Coiled Grooved Pins

Coiled grooved pins are a type of spring pin that is coiled in shape. They provide a high degree of flexibility, making them perfect for applications where parts need to move relative to one another. These pins are often found in hinges, rotating shafts, and other articulated mechanisms. Coiled grooved pins are known for being easy to install and remove, making them a popular option in repair and maintenance work.

Tapered Grooved Pins

Tapered grooved pins are designed to fit tightly into holes slightly smaller than the diameter of the pin. As the pin is inserted into the hole, it gradually expands, creating a secure fit. Tapered grooved pins are often used when there is a need for a semi-permanent joint, such as in construction and electrical applications.


Grooved pins are versatile fasteners that come in many different shapes and sizes. They are an excellent choice when you need a secure, non-permanent joint. By understanding the different types of grooved pins and their applications, you can choose the right one for your next project. Whether it’s a spiral grooved pin for manufacturing or a knurled grooved pin for high-speed applications, you can find the perfect fit for your needs. Consider factors like load, speed, and the joined material when selecting your grooved pin.

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