Solar Hanger Bolt for Steel

The Hanger Bolt for Steel Purlins is a specialized fastener designed for securely connecting commercial/industrial rooftop photovoltaic (PV) mounting rail to steel structures like C‑purlins, Z‑purlins, and square tubes etc. Manufactured from carbon steel to achieve high-strength grades such as Grade 8.8, ensuring excellent tensile and yield strength to meet demanding mechanical requirements. Surface‑finished with high‑performance coatings like Zinc‑Nickel Alloy Plating, providing far superior corrosion protection. 

TECHNICAL INFORMATION

Specification: M10*200 mm

Material: Carbon Steel 1022A/10B21

Property Class: 8.8

Coating: Zinc-Nickel Plating

Application: C‑purlins, Z‑purlins, and square tubes etc.

Certificate: CE, TUV, ISO

Warranty: 12 years warranty and twenty-year service life.

Key Advantages

1, Rapid Installation, Cost Savings:

Installation requires only standard hand or power tools which significantly reducing installation time, labor costs, and safety risks

2, Reliable & Secure Connection:

Forms a robust metal‑to‑metal joint with the steel structure, offering excellent pull‑out and shear resistance to withstand extreme weather conditions (e.g., high winds, heavy snow).

3, Exceptional Durability & Low Maintenance:

High‑strength carbon steel base material ensures long‑term mechanical stability.

Zinc‑nickel alloy coating provides extended corrosion protection, dramatically reducing maintenance or replacement needs due to fastener corrosion, thereby lowering the total lifecycle O&M costs of the solar plant.

Customized Packing

Frequently Asked Questions: Hanger Bolt Solar Fasteners for Steel Structures

1. What types of steel are compatible with your hanger bolts?

Our hanger bolts are designed for use with carbon steel, galvanized steel, and painted steel purlins commonly used in industrial, commercial, and agricultural buildings. They are suitable for steel thicknesses typically 1.5mm.

2. Why choose hanger bolts for steel-based solar installations?

Hanger bolts offer several advantages:

No welding required – reduces installation time and labor costs.

High pull-out and shear strength – ensures a secure, vibration-resistant connection.

Corrosion-resistant coatings – suitable for long-term outdoor exposure.

Versatility – can be used with various steel thicknesses and profiles. 

3. Do I need to pre-drill holes in the steel?

In most cases, no. Our hanger bolts feature a self-drilling or self-tapping tip that drills and taps its own hole in one step when driven with a compatible drill or installation tool. This speeds up installation and reduces equipment requirements. 

4. What tools are needed for installation?

Installation typically requires:

An electric drill or screwdriver with appropriate torque control.

A compatible drive socket (e.g., hex, square, or spline drive).

For larger volumes, specialized handheld or rail-mounted automated tools are available for faster installation.

Why Choose Landpower Solar?

1. 13 Years of OEM Expertise & Proven Global Reach

• With 13 years of specialized OEM/ODM experience，Leading manufacturer of solar mounting in China, we possess deep, factory-level expertise in solar mounting system design and manufacturing.
• Our products have been successfully deployed in over 50 countries, standing the test of diverse climates and operational conditions over the long term.

2. Rigorously Certified, Time-Tested Quality

• Our commitment to reliability is verified by international certifications including ISO, CE, TUV, and SPDA. This ensures every product meets stringent standards for safety, performance, and durability.
• Our quality isn't just claimed—it's proven by years of real-world performance in markets worldwide.

3. Competitive Pricing Through a Partnership Model

• We offer significant price advantages by adhering to a "less profit, long-term mutual benefit" philosophy. We focus on creating sustainable value for our partners, not short-term gains.

4. A Leading Manufacturer in China

• We are recognized as one of China's major solar mounting specialists. This scale translates into robust supply chain control, consistent production capacity, and comprehensive industry knowledge.

Choose Landpower Solar for proven reliability, expert manufacturing, and a true partnership dedicated to your long-term success.

Test Video：please click here Hanger Bolt for Steel Structures