M12 Heavy-Duty Solar Bracket Fasteners for Secure Mounting

Basic Information

Model NO.	Nut	Connection	Common Bolt
Head Style	Hexagonal	Standard	GB
Grade	4.8	Specification	M12
Origin	Jiangsu China	Production Capacity	50000 Pieces Month

Product Description

Special Bolts for PV Brackets, One-Stop Supply of Anti-Corrosion Fasteners

Product	Bolts/Nuts/Spring and Flat washer/T Head	Finishing	Hot Dip Galvanized/Black Oxide
Size	M8/M10/M12,etc	Process	Machining and CNC for Customized fastener
Material	Stainless Steel: SS201, SS304, SS316, SS316L, SS904L, F593	Service Life	Over 25 years
Delivery Time	3-30 Days	Corrosion Resistance	Very Strong

Bolts & fasteners for PV mounting systems, made of hot-dip galvanized high-strength carbon steel or 304/316 stainless steel. Suitable for aluminum alloy, steel and tracking brackets, with corrosion resistance, easy installation, ideal for outdoor PV power stations for long-term stability.

Main Products

Company Profile

Excells in aluminum extrusion, offering cost-effective, reliable solutions globally. We specialize in OEM/ODM, ensuring quality with flexible production. Our services span extrusion to assembly, supporting varied order sizes. ISO 9001 and IATF 16949 certified, we focus on solar PV mounting, precision vehicle components, and custom aluminum products. Our process upgrades and quality control guarantee industry compliance. With professional staff and global 24/7 support, our OEM/ODM capabilities cover concept to production, offering value engineering and rapid prototyping.

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Frequently Asked Questions

Why prefer hot-dip galvanized fasteners for PV brackets?

It offers superior corrosion resistance with a zinc layer lasting 20-30 years; cold galvanized rusts quickly and is unsuitable for main structures.

What are the common strength grades of PV bracket fasteners?

We recommend Grade 8.8 hot-dip galvanized for general use, Grade 10.9 for high-wind or high-load areas, and 304/316 stainless for aluminum to prevent corrosion.

Are fasteners interchangeable between aluminum and steel brackets?

Not advised. Stainless or insulated fasteners should be used for aluminum, while hot-dip galvanized fasteners are best for steel structures.

Is anti-loosening necessary for PV bracket bolts?

Yes. Bolts can loosen due to wind or thermal changes. Solutions include using spring washers + double nuts, lock nuts, anti-slip washers, or adhesives.

What are the key selection points for PV bracket fasteners?

Consider the corrosion grade of the environment, specific sizes (M8/M10/M12), strength requirements, material compatibility, and overall load standards.