Flange Ground Screw



1. Product Overview
Chudu Metal Hot-Dip Galvanized Solar PV Flange Ground Screw Pile is a foundation component designed for ground-mounted photovoltaic systems, solar farms, commercial solar projects, and other ground-mounted solar support structures.
The upper section features a welded flange plate with mounting holes, allowing the ground screw to be connected directly to solar mounting posts, base plates, columns, or other structural components by bolts.
The lower section incorporates a helical screw structure that enables the pile to be mechanically driven into suitable soil. Ground screws are widely used as an alternative foundation solution for ground-mounted PV structures where project and soil conditions permit.
Manufactured from carbon steel with a hot-dip galvanized surface, the ground screw provides structural strength and corrosion protection for outdoor and underground applications.
Ground screw diameter, length, wall thickness, flange dimensions, mounting holes, helical structure, and other technical specifications can be customized according to customer drawings and project requirements.
2. Key Features
Flange Connection Design
The welded top flange provides a convenient bolted connection point between the ground screw foundation and the upper solar mounting structure.
Direct Bolt Connection
Mounting holes in the flange plate allow solar posts, brackets, base plates, or structural members to be connected using bolts.
Helical Ground Installation
The lower helical structure allows the ground screw to be mechanically rotated into suitable soil using specialized installation equipment.
Hot-Dip Galvanized Surface
The steel ground screw is protected by hot-dip galvanizing for improved corrosion resistance in outdoor and underground environments.
Carbon Steel Construction
The carbon steel structure provides the mechanical strength required for ground-mounted photovoltaic foundation applications.
Efficient Foundation Installation
Under suitable site conditions, ground screws can reduce excavation, concrete pouring, and curing work compared with conventional concrete foundations.
Flexible Flange Configuration
Flange diameter, flange thickness, hole diameter, hole quantity, and hole positions can be customized to match different solar mounting structures.
Customized Specifications
Pile diameter, length, wall thickness, helix dimensions, and connection details can be manufactured according to customer drawings and engineering requirements.
OEM & Drawing-Based Manufacturing
OEM production, drawing-based manufacturing, and sample-based customization are available.
3. Product Specifications
|
Item |
Specification |
|
Product Name |
Solar PV Flange Ground Screw Pile |
|
Brand |
Chudu Metal |
|
Product Type |
Flange Ground Screw / Ground Screw with Flange |
|
Material |
Carbon Steel |
|
Steel Grade |
Customized |
|
Surface Treatment |
Hot-Dip Galvanized |
|
Ground Screw Diameter |
Customized |
|
Ground Screw Length |
Customized |
|
Wall Thickness |
Customized |
|
Top Connection |
Welded Flange Plate |
|
Flange Shape |
Round / Customized |
|
Flange Diameter |
Customized |
|
Flange Thickness |
Customized |
|
Flange Hole Diameter |
Customized |
|
Flange Hole Quantity |
Customized |
|
Flange Hole Position |
Customized |
|
Helical Blade Diameter |
Customized |
|
Helical Pitch |
Customized |
|
Helical Section Length |
Customized |
|
Tip Structure |
Standard / Customized |
|
Installation Method |
Mechanical Screw-In Installation |
|
Application |
Solar PV Ground Mounting System |
|
OEM Service |
Available |
|
Drawing-Based Manufacturing |
Available |
|
Sample-Based Manufacturing |
Available |
Note: Ground screw dimensions, flange specifications, and technical parameters can be manufactured according to customer drawings, solar mounting structure dimensions, soil conditions, and project requirements.
4. Flange Connection Structure
The top of the ground screw is equipped with a welded flange plate designed to provide a stable mechanical connection with the upper photovoltaic mounting structure.
The flange can be manufactured with different bolt-hole arrangements to match solar mounting posts, steel columns, base plates, and customized support structures.
Available customized parameters include:
- Flange Diameter
- Flange Thickness
- Bolt Hole Diameter
- Bolt Hole Quantity
- Bolt Circle Diameter
- Hole Position
- Flange Shape
- Connection Interface
The final flange configuration can be produced according to customer drawings and mounting system requirements.
5. Helical Ground Screw Structure
The lower section of the pile features a helical structure designed for mechanical screw-in installation.
During installation, rotational force drives the ground screw into the soil, allowing the pile body and helical section to engage with the surrounding ground.
The helical blade diameter, pitch, number of turns, helical section length, and pile tip structure can be customized according to project specifications.
6. Installation Process
1. Foundation Layout
Determine the ground screw positions according to the photovoltaic mounting system layout and engineering design.
2. Ground Screw Installation
Use suitable ground screw installation equipment to rotate the pile into the soil.
3. Depth & Alignment Control
Control the installation depth, verticality, and final position according to engineering requirements.
4. Upper Structure Positioning
Position the solar mounting post, base plate, or support structure on the top flange.
5. Bolted Connection
Connect the upper mounting structure to the flange using suitable bolts, nuts, and washers.
6. Solar Mounting Structure Assembly
Continue installing beams, purlins, rails, braces, and photovoltaic modules according to the system design.
7. Applications
Chudu Metal Solar PV Flange Ground Screw Piles are suitable for:
● Solar Ground Mounting Systems
● Ground-Mounted Photovoltaic Projects
● Utility-Scale Solar Farms
● Commercial Ground Solar Projects
● Agricultural Solar Projects
● Fixed-Tilt Solar Mounting Systems
● Solar Mounting Steel Structures
● Solar Support Columns
● Photovoltaic Power Plant Foundations
● Customized Ground Solar Structures

8. Material & Surface Treatment
Carbon Steel
The ground screw body and flange plate are manufactured from carbon steel to provide the structural strength required for solar foundation applications.
Different steel grades can be supplied according to customer drawings, project specifications, and engineering requirements.
Hot-Dip Galvanized
The steel components are treated with hot-dip galvanizing to improve corrosion protection for outdoor and underground use.
Galvanizing requirements can be customized according to project specifications and customer technical requirements.
9. Customized Dimensions & Specifications
Chudu Metal provides flexible customized manufacturing for different solar PV ground mounting projects.
Available customization includes:
- Ground Screw Diameter
- Ground Screw Length
- Wall Thickness
- Steel Grade
- Flange Diameter
- Flange Thickness
- Flange Shape
- Bolt Hole Diameter
- Bolt Hole Quantity
- Bolt Hole Position
- Bolt Circle Diameter
- Helical Blade Diameter
- Helical Pitch
- Number of Helical Turns
- Helical Section Length
- Pile Tip Structure
- Hot-Dip Galvanizing Requirements
- Matching Solar Post Dimensions
- Packaging Requirements
Products can be manufactured according to customer drawings, samples, mounting structure dimensions, and project technical requirements.
10. Compatible Solar Mounting Components
The Flange Ground Screw can be used together with:
- Solar Mounting Posts
- Steel Columns
- Base Plates
- Solar Mounting Beams
- Solar Purlins
- C Channel Steel
- Square Steel Tubes
- Solar Mounting Rails
- Bracing Components
- Connecting Brackets
- Bolts & Nuts
- Flat Washers
- Spring Washers
- Other Solar Mounting Fasteners
Related photovoltaic structural components and fasteners can be supplied together according to project requirements.
11. Engineering Considerations
The final ground screw dimensions, flange configuration, and installation requirements should be determined according to the actual photovoltaic project conditions.
Important factors may include:
- Soil Conditions
- Required Installation Depth
- Compression Load
- Pull-Out Resistance
- Lateral Load
- Wind Load
- Snow Load
- Solar Mounting Structure Design
- Foundation Spacing
- Upper Post Connection
- Local Engineering Requirements
For project-specific applications, appropriate engineering design and site testing should be carried out according to project requirements.
12. Advantages of Flange-Type Ground Screws
Compared with open-top ground screws, the flange-type design provides a different connection method for the upper structure.
The flange creates a direct bolted interface and can be customized to match different post bases and photovoltaic mounting structures.
This configuration is particularly suitable where the mounting structure is designed around a base plate or flange connection rather than an inserted-post connection.
The flange also allows bolt-hole geometry to be manufactured specifically for the upper support structure.
13. Manufacturing Advantages
Chudu Metal provides manufacturing capabilities for solar ground screws, photovoltaic mounting structural components, and related fasteners.
Different pile diameters, lengths, wall thicknesses, flange dimensions, and helical structures can be produced according to customer requirements.
The flange plate can be manufactured with customized diameters, thicknesses, and hole configurations to match different solar posts and support structures.
With integrated metal processing and fastener manufacturing capabilities, Chudu Metal can supply ground screws together with related posts, beams, C channels, square tubes, brackets, bolts, nuts, and washers, helping customers simplify project procurement.
OEM, drawing-based production, and sample-based customization are available.
14. Why Choose Chudu Metal
Chudu Metal specializes in manufacturing solar PV mounting components, ground-mounted photovoltaic structural products, and fasteners for global solar projects.
Our solar product range includes flange ground screws, open-top ground screws, solar mounting posts, C channel steel, square steel tubes, purlins, mounting beams, solar rails, module clamps, mounting brackets, connectors, U-bolts, pressure plates, bolts, nuts, washers, and other customized photovoltaic mounting components.
With professional metal processing and fastener manufacturing capabilities, we can provide both standard products and customized solutions according to customer drawings and project specifications.
Different ground screw diameters, lengths, wall thicknesses, flange structures, helical profiles, and surface treatment requirements can be customized for different solar ground mounting projects.
Chudu Metal is committed to providing global customers with reliable product quality, competitive factory pricing, flexible customization, and professional solar PV mounting solutions.
Contact Us
Hebei Chudu Metal Products Co., Ltd.
🌐 Website: www.chudufastener.com
📧 Email: barry@hbchudu.com
📱 WhatsApp / Phone: +86 18533933520
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Contact Us
- barry@hbchudu.com
- +86 18533933520
-
Hebei Chudu Metal Products Co., Ltd.
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