This page is not the official website. Generated by AI, does not constitute any advice. If needed, please click here to visit the corresponding official website.

Premium Fasteners & Solar Accessories from China

Ningbo Gangtong Zheli Fasteners Co., Ltd. is a trusted manufacturer of high-strength standard fasteners since 2001. We specialize in Hex Bolts, Hex Nuts, Self Tapping Screws, Threaded Rods, and Solar Mounting Systems made from carbon steel, alloy steel, and stainless steel. With over 20 years of experience and a monthly production capacity of 2,000 tons, we deliver quality, reliability, and global service.

Explore Products Contact Us
2000+ Tons/Month Capacity
$15M+ Annual Sales
15,000m² Factory Area
GTZL Fastener Factory and Products

Trusted by 500+ Clients Worldwide

About Gangtong Zheli

A leading Chinese manufacturer of high-strength fasteners and solar mounting solutions with over two decades of excellence in engineering and global supply.

GTZL Manufacturing Facility

Manufacturing Excellence Since 2001

Ningbo Gangtong Zheli Fasteners Co., Ltd. is a professional manufacturer based in China, specializing in high-strength standard fasteners. Our product range includes heavy hex bolts & heavy hex nuts, threaded rods & studs, washers, screws, and complete solar mounting systems.

Established in 2001, we have rapidly expanded over the past two decades. Our factory is located in the Ningbo Zhenhai Chemical Industrial Area, covering approximately 15,000 square meters, with a monthly production capacity of 2,000 tons. Our headquarters and foreign sales department operate from the Ningbo Jiangdong Eastern Business Centre.

2000 Tons
Monthly Production
$15M+
Annual Sales

Our Company Strengths

Backed by innovation, quality, and a global-ready supply chain

Quality Assurance

We are a quality-conscious company, continuously innovating production techniques to enhance efficiency and deliver superior products.

20+ Years Experience

Established in 2001, we have developed rapidly over two decades, building trust with clients across 60+ countries.

24-Hour Support

Our well-trained and experienced staff respond to all inquiries within 24 hours, ensuring seamless communication.

Global Distribution

Advanced supply chain and MRO-based integrated procurement system for fast, reliable delivery worldwide.

Our Product Range

High-quality fasteners and solar accessories engineered for durability and performance

Hex Bolt

Hex Bolt

High-strength hex bolts made from carbon steel, alloy steel, and stainless steel. Ideal for structural and industrial applications.

  • Available in M6–M100 sizes
  • Grades: 4.8, 8.8, 10.9, 12.9
  • Surface: Zinc, Hot-Dip Galvanized, Dacromet
Hex Nut

Hex Nut

Precision-engineered hex nuts designed for secure fastening with bolts and screws in demanding environments.

  • Standard and heavy hex variants
  • Materials: Carbon, Alloy, Stainless Steel
  • Finishes: Plain, Zinc, Galvanized
Self Tapping Screw

Self Tapping Screw

High-performance screws for metal, wood, and plastic with sharp threads for quick, secure fastening.

  • Type: A, B, AB, Tapping
  • Head: Pan, Flat, Round, Truss
  • Drive: Phillips, Slotted, Pozidriv
Threaded Rod

Threaded Rod

Full-threaded rods in various diameters and lengths for structural, mechanical, and construction applications.

  • Diameter: M6–M64
  • Length: Customizable up to 6 meters
  • Material: Carbon, Stainless Steel
Solar Bracket

Solar Bracket

Complete roof and ground mounting systems for solar panels with high corrosion resistance and load capacity.

  • Aluminum & Galvanized Steel Options
  • Roof Hook, Hanger Bolt, Ground Screw Included
  • Compatible with All Major Panel Brands
Washer

Washer

Flat, spring, and ring washers for load distribution, vibration resistance, and secure fastening.

  • Type: Flat, Spring, Lock, Tooth
  • Material: Carbon Steel, Stainless Steel
  • Finish: Zinc, Phosphated, Plain
Anchor

Anchor

Wedge, sleeve, and drop-in anchors for concrete and masonry applications with high pull-out strength.

  • Types: Wedge, Sleeve, Drop-In
  • Diameters: M8–M24
  • Load Ratings: Up to 20kN
Rivet

Rivet

Blind rivets, semi-tubular, and rivet nuts for permanent fastening in sheet metal and assembly lines.

  • Materials: Steel, Stainless, Aluminum
  • Diameters: 2mm–6mm
  • Head Types: Dome, Countersunk, Large Flange
View Full Product Catalog

Why Choose GTZL Fastener?

Certified Quality

ISO-certified processes and rigorous quality control ensure every fastener meets international standards.

Fast Global Shipping

Efficient logistics network with sea, air, and rail options for timely delivery to over 60 countries.

Custom Manufacturing

OEM/ODM services available. We produce to your exact specifications, drawings, and standards.

Secure Transactions

100% secure payment processing. We protect your financial information with advanced encryption.

2000+
Tons Produced Monthly
$15M+
Annual Sales
500+
Global Clients
60+
Countries Served

Frequently Asked Questions

What materials do you use for your fasteners?

We manufacture fasteners from carbon steel, alloy steel, and stainless steel (grades 304, 316, etc.), depending on application and customer requirements.

Can you provide custom fasteners?

Yes, we offer OEM and ODM services. Share your drawings or specifications, and we’ll manufacture to your exact needs.

What is your minimum order quantity (MOQ)?

MOQ varies by product. For standard items, it can be as low as 1,000 pieces. Contact us for specific details.

How do you ensure product quality?

We follow strict ISO procedures, conduct material testing, dimensional checks, and mechanical property verification at every stage.

What are your delivery times?

Typical lead time is 20–30 days after order confirmation. Express shipping options are available upon request.

Get in Touch

Reach out to us for product inquiries, quotes, or technical support.

ethan@gtzl-cn.com
+86-574-86657588
Visit Official Website to Contact
China Quality Suppliers fobcompany.info

Notice for Buyers: If you are a buyer, the above information is generated by AI collection and does not constitute any advice. If necessary, please visit the corresponding official website.

For Domain Owners: If you are the domain owner and do not want to be included by fobcompany.info, please contact support@fobcompany.info via your corporate email to cancel. We will cancel your inclusion within 3 business days.

如果您是域名所有者 不想被fobcompany.info收录 请用企业邮箱联系support@fobcompany.info 取消收录 我们将在3个工作日取消您的收录

Service Request: If you are other domain and want to be included, please contact support@fobcompany.info

如果您是其他域名合作 也请联系support@fobcompany.info