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What is a Pigtail Bolt?

What is a Pigtail Bolt?
2024-11-08
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What is a Pigtail Bolt?

Pigtail bolts are essential fasteners utilized in pole line transmission and distribution systems.

They are crucial for the installation of pole line hardware, providing a secure and reliable connection between various components.

However, how do you find high quality, durable and reliable pigtail eye bolt?

This guide will help you understand the key aspects of pigtail bolts, including their design, technical specifications, and the best materials to ensure you select a high-quality, durable, and reliable option.

 

Table of Contents

1. Introduction

  1.1 Uses

2. What is a Pigtail Bolt?

  2.1 Design and Structure

  2.2 How Pigtail Bolts Work

3. Applications of Pigtail Bolts

  3.1 Electrical Engineering

  3.2 Mechanical Equipment

  3.3 Construction and Automotive Industries

4. Advantages of Using Pigtail Bolts

5. How to Install a Pigtail Bolt

6. Why Choose Jera Line Be Your Partner

  6.1 Product Profile

7. Frequently Asked Questions (FAQs)

8. Conclusion

 

Introduction

A pigtail bolt is a specialized type of fastener used in various construction and utility applications. It is characterized by its unique design, which includes a threaded end and a looped or "pigtail" end. This design allows for secure attachment and support of various components, making it an essential tool in many industries.

 

Uses

  • Power lines: Pigtail Bolt is commonly used in the construction of power lines for fixing cables to poles, or for hanging and fixing low voltage dead end clamps or suspension clamps.
  • Telecoms: In the telecoms sector, they are used to secure cables to poles and ensure the stability of communication lines.
  • Construction industry: In the construction sector, Pigtail Bolt is used to secure signs, banners and other structures, as well as to support and secure electrical equipment in electrical installations.
  • Other uses: they can also be used in any other industrial application where fixing and supporting is required, especially in outdoor environments, as they usually have an anti-corrosion coating for use in all weather conditions.

 

What is a Pigtail Bolt?

The complete kit of pigtail hook is normally composed of:

  • Single piece of pigtail bolt main body
  • Two hex nuts and
  • Two washers

Pigtail bolt is also called pigtail eye bolt, pigtail hook, pigtail screw, pigtail hook screws, pigtail fastener, it’s one kind of pigtail hardware.

Design and Structure

The pigtail bolt does not have the same shape and structure. The pigtail bolt used in Kenya and Zambia is a welded square washer or round washer on the neck of the pigtail hook. The pigtail bolt used in Malaysia has two extra forged points, on the left and right sides of the neck pigtail hook. This design prevents the washer from dropping off.

Pigtail Bolts are usually made of metal, with a threaded portion similar to a normal bolt, but with a curved end. The curved portion provides additional flexibility, allowing it to fit into tight spaces or specific installation angles.

How Pigtail Bolts Work

It achieves reliable connection and fixation by docking the cable or other components at the connection end with the installation point. Its curved design is often used to reduce cable tension or stress and enhance stability.

 

Applications of Pigtail Bolts

Electrical Engineering

Pigtail Bolts are commonly used for cable terminations in power systems, ensuring stable current transmission and preventing damage to electrical equipment.

  • Power Line Construction and Maintenance: Pigtail Bolts are a key component in building and maintaining power lines. They are used to secure wires, cables, and other power transmission components to utility poles, ensuring the stability and safety of power transmission.
  • Communication Towers and Utility Poles: These special fasteners offer a unique design that allows for easy installation of hanging clamps and terminal clamps on wooden or concrete utility poles.
  • Electrical Installation: In electrical installations, Pigtail Bolts are used to support and secure electrical equipment, especially in outdoor applications where they need to be able to withstand various weather conditions.
  • Suspension and Tension Adjustment: Pigtail Bolts are designed to suspend and tension low voltage terminal clamps or suspension clamps during power line construction.

Mechanical Equipment

Pigtail Bolts are used to secure mechanical components, especially when the installation requires a specific angle or limited space.

Construction and Automotive Industries

Pigtail Bolts are used in construction and automotive manufacturing to connect and support complex parts, improving structural safety.

 

Advantages of Using Pigtail Bolts

  • 1. Increased Connection Stability

Pigtail Bolts provide more stable connections, particularly in complex installations that require additional support.

  • 2. Enhanced Durability

Their unique design helps distribute pressure, extending their lifespan. The bolts experience very insignificant buckling over time.

  • 3. High Adaptability

Pigtail Bolts can be used in tight or angled spaces, offering high adaptability for different installation environments.

  • 4. Improved Installation Efficiency

Their special design speeds up the installation process, reducing the time needed for complex connections.

  • 5. Accommodates Minor Measurement Variations

Pigtail screws can integrate minor measurement differences. The dimensions do not have to be precise in the event of slight dissimilarities in between.

 

How to Install a Pigtail Bolt

Installing a pigtail bolt involves a series of precise steps to ensure a secure and reliable connection. Here's a detailed guide to the installation process:

 

Step 1: Establish the Right Components

Before you begin, it's crucial to select the appropriate size and type of nut, washer, and pigtail hook for your specific operation. The choice depends on the nature of the connection, the required bolt strength, industry standards, and application regulations. This step is foundational to ensuring the installation meets all necessary specifications and safety requirements.

Step 2: Assemble the Washers on the Bolt

Start by placing the first washer onto the shaft of the pigtail bolt. If a lock washer is required for your application, add it next, followed by the second washer. This assembly helps distribute the load and prevent the bolt from loosening over time.

Step 3: Insert the Pigtail Hook Through the Hole

Push the pigtail hook screw through the pre-drilled hole, making sure to firmly press the first washer between the bolt neck and the pole. This step is essential for creating a secure initial contact between the bolt and the pole.

Step 4: Position the Second Washer

Once the pigtail hook is through the hole, place the second washer on the part of the pigtail eye bolt that is protruding from the pole. This washer will help distribute the force on the other side of the pole, ensuring an even and secure connection.

Step 5: Thread the Hex Nuts

By twisting clockwise, thread the two hex nuts onto the pigtail fastener shaft. Ensure that the first nut presses against the washer by hand-tightening it. This preliminary step helps to set the nuts in place before final tightening.

Step 6: Tighten the Nuts

Using the correct size wrench, fasten the nuts tightly against the washers. It's important not to overtighten, as this can cause damage to the bolt, washers, or the material of the pole. Proper tightening ensures a secure connection without compromising the integrity of the components.

 

By following these steps, you can ensure that your pigtail bolt is installed correctly, providing a strong and stable fastening solution for your project.

 

Why Choose Jera Line Be Your Partner

Choosing the right Pigtail Bolt for your project involves several considerations to ensure compatibility, strength, and durability. One of the top choices in the market for high-quality Pigtail Bolts is Jera Line, a leading manufacturer known for its premium, precision-engineered bolts.

Jera Line stands out as the preferred manufacturer for several key reasons:

  • Superior Quality: Jera Line products are manufactured to the highest industry standards, ensuring exceptional durability and reliability in demanding applications.
  • Precision Engineering: Every bolt is carefully engineered for precise fit and functionality, ensuring secure connections and reliable performance.
  • Customizable Options: With a range of sizes, load capacities, and thread specifications, Jera Line offers customizable solutions to meet specific project needs.

Product Profile

pigtail bolt

Pigtail Pole Bolt, PB-16-300

Pigtail hook PB-16-300 also called pigtail anchor bolt is developed to use on wooden, concrete poles or other power line poles to hang and tension the low voltage dead end clamps or suspension clamps

MBL,KN: 15
  • Application

Low voltage power cable line distribution

  • Technical specification
Code MBL, kN Weight, kg Material Dimensions
PB-16-300 15 0.74 Hot-dip galvanized steel Ø 16 mm - 240 mm
  • Components and materials

Pigtail eye bolt is made of high quality steel and processed by hot dip galvanized production technology which is available in jera line workshop. Superior material and surface finish allow it to used in various weather conditions under appropriate loading.

The reason why we call it pigtail bolt is because of its one end pigtail designed, the spiral end of the bolt resembles the tail of a pig.The installation of this aerial pigtail bolt is very easy, it can be installed on wooden or concrete pole with related suspension clamp with cables.

  • Dimensions
Pigtail Bolt
  • Test
Pigtail Pole Bolt, PB-16-300  have passed the voltage tests, tension test. All the brackets meets the criteria of NF C 33042 and EN 50-483.We have our own interior laboratory to do inspection during daily production, which ensure our product meet the requirement for aerial electrical line components standards. 

 

Frequently Asked Questions (FAQs)

What is a Pigtail Bolt?
A pigtail bolt is one kind of pigtail hardware that is used in concrete, wooden, and other power posts for receiving aerial bundled cable across suspension clamps and dead-end clamps.

It is also called a pigtail eye bolt, pigtail hook, pigtail screw, pigtail hook screw, or pigtail fastener.
What is the difference between pigtail bolt and pigtail screw hook?
There is no big difference between pigtail bolt and pigtail screw hook, just difference on the end. The pigtail screw hook is usually with a sharp end.
What is the manufacturing process of pigtail bolts?
  • Uncoiling, straightening, and cutting the wire to length.
  • Cold Forging: Forming the steel into the desired design at room temperature.
  • Pigtail end: Twisting to obtain the pigtail design.
  • Threading: Forming of threads through cutting or rolling.
  • Heat Treatment: Hardening by subjecting it to extreme heat.
  • Surface Treatment: Hot-dip galvanization according to ISO1461.
  • Packing/Stocking.
What is the benefit of pigtail bolts?
Pigtail bolts offer reliable, secure connections, especially for aerial bundled cables, providing high strength and resistance to mechanical stress. Their twisted end design allows for easy installation in confined spaces, ensuring stability and durability in harsh environments.

 

Conclusion

While working with pigtail eye bolts and washers might appear straightforward, their role in fastening and connecting objects is anything but trivial. These components are essential for creating secure and reliable connections in various applications.

If you are in need of pigtail bolts for your applications, look no further. Reach out to Jera today to discuss your requirements and to receive competitive pricing on our products.

We are here to support you with our expertise and top-tier manufacturing standards.

 

Click here, and Jera will provide you with free consulting services.

 

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