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The REACON Hot Dip Galvanized Pole Top Pin is a pole line hardware component designed to support pin-type insulators on utility poles in overhead power distribution systems. It provides a mechanical mounting point for porcelain and composite insulators, helping maintain their position within the overhead conductor support structure.
Manufactured from steel and protected by a hot-dip galvanized finish, the pole top pin is designed for outdoor electrical infrastructure where mechanical stability and surface protection are important.
The product features an ANSI standard cast lead thread for insulator connection. Its channel-section mounting structure is positioned with the flat side against the pole and secured using a 5/8-inch machine bolt. This arrangement provides a practical mounting solution for pole-top installations.
REACON offers different thread configurations, including D0258-01 and D0258-02, to accommodate different insulator and project requirements.
1. Standard Galvanized Pole Top Pin
The standard pole top pin provides a threaded mounting interface for pin-type insulators installed at the top of utility poles. It is used in overhead distribution structures where the insulator needs to be positioned securely above the pole.
2. Channel Section Pole Top Pin
The channel-section design features a flat mounting surface that rests against the pole. The pin is secured using a 5/8-inch machine bolt, providing a direct connection between the pole and the insulator support component.
This mounting arrangement is suitable for pole-top installations where the hardware configuration requires a compact and stable attachment.
3. Different Thread Configurations
REACON provides pole top pins with different cast lead thread sizes. Customers can select the appropriate model according to the matching insulator thread and installation requirements.
The following models are listed in the current product specification.
| Stock Number | Lead Thread | B (mm) | C (mm) | D (mm) | E (inch) | E (mm) | Approx. Shipping Weight (kg/100 pcs) | Standard Package (pcs/carton) |
| D0258-01 | 1 inch | 279 | 127 | 76 | 20 | 508 | 140.00 | 15 |
| D0258-02 | 1-3/8 inch | 279 | 127 | 76 | 20 | 508 | 180.00 | 15 |
Model Selection:
• D0258-01: Pole top pin with a 1-inch cast lead thread.
• D0258-02: Pole top pin with a 1-3/8-inch cast lead thread.
The two models share the listed B, C, D, and E dimensions but differ in thread size and approximate shipping weight.
Please confirm the matching insulator thread and mounting dimensions before ordering.
| Item | Description |
| Product Name | Galvanized Pole Top Pin |
| Product Category | Pole Line Hardware |
| Material | Steel |
| Manufacturing Structure | Pressed steel channel-section design, subject to model confirmation |
| Surface Treatment | Hot Dip Galvanized |
| Galvanizing Reference | ASTM A153 |
| Thread Type | ANSI Standard Cast Lead Thread |
| Available Models | D0258-01, D0258-02 |
| Mounting Bolt | 5/8-inch machine bolt |
| Compatible Insulators | Porcelain and Composite Pin-Type Insulators |
| Application | Overhead Power Distribution Lines |
| Customization | Available according to confirmed drawings and requirements |
Threaded Insulator Mounting Interface
The cast lead thread provides the connection point for compatible pin-type insulators. Different thread sizes are available to match the corresponding insulator specifications.
Channel Section Mounting Structure
The flat side of the channel section is positioned against the pole and secured with a 5/8-inch machine bolt. This configuration allows the pin to be mounted directly onto the specified pole structure.
Hot Dip Galvanized Surface
The galvanized steel surface helps protect the product against outdoor environmental exposure. The coating requirements can be specified with reference to ASTM A153.
Multiple Thread Options
The D0258-01 and D0258-02 models provide two thread configurations, allowing customers to select according to the insulator connection requirements.
Suitable for Outdoor Utility Installations
The product is designed for pole-top mounting applications in overhead power distribution infrastructure, where the support hardware is exposed to changing weather conditions.
1. Overhead Power Distribution Lines
Used at the top of utility poles to provide mounting points for pin-type insulators that support overhead conductors.
2. Rural Electrification Projects
Applied in rural distribution networks where pole-top insulator support components are required for new line construction and infrastructure upgrades.
3. Utility Pole Replacement and Maintenance
Used when replacing damaged or outdated pole-top mounting hardware during electrical network maintenance.
4. Porcelain and Composite Insulator Installation
Provides a threaded support connection for compatible porcelain and composite pin-type insulators.
5. Outdoor Electrical Distribution Structures
Suitable for utility pole installations where galvanized steel mounting hardware is required for outdoor service.
Correct installation helps ensure proper positioning of the insulator and stable connection with the utility pole.
1. Check the Model: Confirm the pole top pin model and thread size according to the selected insulator.
2. Prepare the Pole: Check the mounting position and ensure the bolt hole matches the required 5/8-inch machine bolt.
3. Position the Pin: Place the flat side of the channel section against the pole.
4. Secure the Hardware: Install the machine bolt and corresponding fastening components according to the assembly drawing.
5. Install the Insulator: Connect the compatible pin-type insulator to the cast lead threaded section.
6. Check Alignment: Verify that the pin and insulator are correctly positioned before conductor installation.
7. Final Inspection: Check the fastening condition, thread engagement, and overall assembly.
All installation work should follow the approved engineering drawings and applicable electrical safety procedures.
REACON can arrange inspection according to the confirmed product specifications and customer requirements.
Relevant inspection items include:
• Overall product dimensions
• Thread size and thread accuracy
• Channel section shape and mounting-hole position
• Steel material and surface condition
• Hot-dip galvanized coating appearance
• Zinc coating thickness, where specified
• Final packaging and quantity verification
Additional mechanical testing and inspection documentation can be discussed before production.
When selecting a pole top pin, customers should pay attention to the following details:
| Selection Item | Information Required |
| Product Type | Standard Pole Top Pin |
| Model | D0258-01 or D0258-02 |
| Thread Size | 1 inch or 1-3/8 inch |
| Mounting Bolt | 5/8-inch machine bolt |
| Insulator Type | Porcelain or composite pin-type insulator |
| Pole Structure | Confirm mounting arrangement |
| Surface Treatment | Hot Dip Galvanized |
| Drawing | Recommended for dimensional confirmation |
Providing the insulator model or technical drawing can help confirm the correct pole top pin configuration before ordering.
Q1: What is a pole top pin used for?
A pole top pin is used to support pin-type insulators at the top of utility poles in overhead power distribution systems.
Q2: What models are available?
The current listed models are D0258-01 and D0258-02, with 1-inch and 1-3/8-inch cast lead threads respectively.
Q3: What is the mounting method?
The flat side of the channel section is positioned against the pole and secured with a 5/8-inch machine bolt.
Q4: Which insulators can be installed on this pole top pin?
It is designed for compatible porcelain and composite pin-type insulators. The thread size must match the selected insulator.
Q5: What surface treatment is used?
The product uses hot-dip galvanizing with ASTM A153 as the coating reference.
Q6: Can REACON customize the pole top pin?
Yes. Customized dimensions and configurations can be evaluated according to customer drawings, insulator specifications, and project requirements.
Q7: What information should I provide when requesting a quotation?
Please provide the required model, thread size, quantity, insulator type, mounting dimensions, and technical drawings if available.
REACON supplies pole top pins, crossarm pins, insulator mounting hardware, and other components for overhead power transmission and distribution systems.
For product inquiries, please share your required model, thread specification, or technical drawing. Our team can help confirm the suitable configuration for your utility project.
