Hot-Dip Galvanized Solar Mounting Hex Bolt Set

Common metric diameters used in photovoltaic mounting structures include:

M8

Suitable for selected lighter-duty brackets, small connectors, mounting accessories, and system-specific connections.

M10

Commonly used for solar mounting brackets, C-channel connectors, braces, rail-support connections, and other medium structural connections.

M12

Widely used for structural connections between posts, beams, braces, brackets, ground screw connections, and steel support components.

M16

Used for heavier structural connections where larger bolt diameter and higher connection capacity are required.

Actual bolt size must be determined according to the structural design. Commercial solar mounting catalogs show M10, M12 and M16 fasteners in different ground-mount structural positions rather than one universal size for the complete system.

Chudu Metal can manufacture hot-dip galvanized hex bolts according to different international and customer-specified standards.

Common options include:

• DIN 931– Hexagon Head Bolt, Partial Thread
• DIN 933– Hexagon Head Bolt, Full Thread
• ISO 4014– Hexagon Head Bolt, Partial Thread
• ISO 4017– Hexagon Head Bolt, Full Thread
• Customized Standards
• Drawing-Based Non-Standard Bolts

Matching hex nuts, flat washers, and spring washers can also be supplied as complete fastening assemblies.

A typical photovoltaic structural fastening set can include:

1 × Hot-Dip Galvanized Hex Bolt

Provides the main structural connection.

1 × Hot-Dip Galvanized Hex Nut

Matched to the bolt thread and strength requirements.

1 × Flat Washer

Helps distribute the clamping force over the surface of the connected steel component.

1 × Spring Washer

Can be supplied when required by the mounting-system design to provide a locking washer arrangement.

The exact washer arrangement should follow the project drawing and engineering specification rather than being treated as mandatory for every photovoltaic connection.

Available customization includes:

• Bolt Diameter
• Bolt Length
• Thread Length
• Full Thread / Partial Thread
• Hex Head Dimensions
• Strength Grade
• Nut Grade
• Flat Washer Size
• Spring Washer Size
• Large Flat Washer
• Surface Coating
• Galvanizing Requirement
• Packaging
• Special Drawing-Based Dimensions

OEM and non-standard fasteners can be manufactured according to drawings, samples, and photovoltaic project requirements.

The correct bolt specification should be selected according to:

• Structural Connection Type
• Design Load
• Bolt Diameter
• Steel Thickness
• Hole Diameter
• Strength Grade
• Required Clamping Force
• Washer Configuration
• Installation Torque
• Wind Load
• Snow Load
• Corrosion Environment
• Project Engineering Requirements

Fastener size and tightening torque should follow the photovoltaic mounting system design and project structural calculations.

Chudu Metal provides manufacturing services for solar PV fasteners and mounting accessories.

Hot-dip galvanized hex bolts can be supplied in different diameters, lengths, thread types, strength grades, and fastening combinations.

In addition to standard fasteners, customized bolts and fastening sets can be manufactured according to:

• Customer Drawings
• Project Specifications
• Samples
• Structural Connection Requirements
• Packaging Requirements

Complete bolt, nut, flat washer, and spring washer sets can be supplied for efficient project purchasing and installation.

Chudu Metal specializes in manufacturing solar PV mounting systems, structural components, and fasteners for photovoltaic projects.

Our solar fastener range includes hot-dip galvanized hex bolts, nuts, flat washers, spring washers, U-bolts, T-bolts, socket head bolts, stainless steel fasteners, T-slot nuts, channel nuts, and customized fastening components.

We also supply solar mounting C channels, square steel tubes, purlins, connectors, ground screws, mounting rails, module clamps, roof clamps, and other photovoltaic mounting components.

With professional fastener and metal processing capabilities, Chudu Metal can provide standard and customized products according to customer drawings and project requirements.

We are committed to providing global customers with reliable product quality, competitive factory pricing, flexible customization, and professional solar PV mounting solutions.