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Tools and machines play a crucial role in various industries, but for these to function optimally, they require specialized components such as industrial pins.

In simple terms, industrial pins keep various machines in working order and prevent them from falling apart, avoiding downtime in your business operations. Generally, these pins function as fastening hardware. Today, they have a variety of functions, including mounting, aligning, assembling, coupling, and penetrating different pieces of hardware or components.

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A Close Look at Industrial Pins

Industrial pins fall into the category of fasteners without threads to assemble two components. Generally, an industrial pin is inserted into a hole to prevent axial motion and ensure the proper alignment of components while effectively countering sheer force. In other applications, industrial pins serve as a linking point or facilitate the positioning of parts during the assembly phase.  

There are also two basic types of industrial pins: semi-permanent and quick-release or self-locking. The semi-permanent type requires specialized tools for assembly and disassembly with supplementary force. As for the quick-release type, they have a spring-loaded mechanism capable of latching the pin in position. They are simple to install or remove. Industrial pins are in wide use in machine manufacturing and mechanical engineering applications requiring highly secure elements.  

The Types of Industrial Pins

There are different types of industrial pins on the market with specific functions. They vary depending on their intended use.  

1. Clevis Pins

Clevis pins are smooth, cylindrical fasteners in a pin shape that works together with a U-shaped fastener known as a clevis with a miniature hole at one end. Similar to other fasteners, they mainly function to fasten components or parts. Clevis pins are readily available in different materials, sizes, finishes, and designs depending on their application.  

In some cases, cotter pins connect them via a perpendicular hole that you can find at the base of the clevis pin for added security. Some models of clevis pins come with a spring-loaded slider at the base to control the pin and prevent the probability of sliding out. Depending on the application, you might want to check out this helpful clevis pin chart as a reliable source.

Clevis pins offer several benefits in various applications, such as allowing movement, absorbing lateral tension, being easy to install or remove, and cutting down the chances of loosening if subject to vibration.

2. Grooved Pins

A grooved pin has a solid construction. It is made of steel with distinctive grooving, usually three throughout its body. Generally, the grooves run the entire length of the pin, but in some they are only on a section of it. The grooving on this industrial pin ensures it has better elasticity and solidity. Using grooved pins for fastening applications ensures good adherence when fastening two segments together.

3. Spring Pins

A spring pin has a variety of industrial applications. One of the features that make it stand out is that it is recessed. It’s a cylindrical pin that features a cut throughout its length. The reason is to ensure a good level of flexibility while simultaneously compressing into tight holes easily.  

Today, there are two available models. They are either coiled and slotted or rolled. The rolled model typically wads into a shape while a coiled model spirals into a recessed cylindrical form. Spring pins have a variety of uses, such as locking devices, a shaft, and a sleeve for electrical wiring, to name a few.  

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4. Taper Pins

Among the various industrial pins, taper pins feature a large diameter at one end, which plays a role when securing collars or hubs to shafts, especially in applications involving a minimal load. Depending on the application, some might have a male screw thread on the smaller point that serves as a locking element.  

5. Cotter Pins

Cotter pins have different names, such as R-clip or split pins. These are essentially wired fasteners that function as a locking mechanism to secure pins, nuts, or other fasteners, especially in scenarios where bolts and nuts go through significant stress and the potential risk of damage. Today, cotter pins are available in different types, such as circle cotter pins, ring cotter pins, and hairpin cotter pins, to name a few.  

6. Dowel Pins

A dowel pin is an industrial pin with a distinctive cylindrical shape and solid construction. It’s small in size and mainly utilized to maintain the alignment of parts before being combined with screws or other fasteners. Most dowel pins typically feature an angled end that facilitates convenient insertion. The pins are available in various materials, such as steel, plastic, or wood, depending on their use. 

Final Thoughts on Industrial Pins

In various industrial applications, some components require a connection point. This is where industrial pins enter the picture and function as locking mechanisms. Although the different industrial pins function similarly, their uses vary from one application to another.

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