• Model No.: A325
  • Type: Hexagon Head Bolt
  • Head Style: Hexagonal
  • Grade: 10.9
  • Finish: Black
  • Trademark: NGL
  • Specification: M3 to M64, 1/4" to 3"
  • HS Code: 7318150000
  • Material: High Strength Steel
  • Connection Type: Standard Bolt
  • Standard: ANSI
  • Application: Industrial Machinery
  • Finish Options: Black, Plain, ZP, YZP, BZP, WZP
  • Size Range: M4 to M56, 5/32" to 3"
  • Packaging: 25kg per Carton, Palletized for Europe
  • Origin: Ningbo, China
Product Description:
Product Name Hexagon Head Bolt
Standard DIN, ASTM/ANSI, JIS, EN, ISO, AS, GB
Material Carbon Steel: 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9
Stainless Steel: A2, A4
Finish Plain, Black, Z.P., H.D.G.
Packing 25kg/box, 36 boxes/pallet
Free Sample for Standard Fasteners

Competitive Advantages:
1. Strict Quality Control
2. Competitive Pricing
3. Wide Range of Designs
4. OEM Orders Accepted
5. Custom Logo and Design Welcome

Ningbo Gangtong Zheli Fasteners Co., Ltd. is a leading manufacturer based in China, specializing in high-strength fasteners and various hardware products. Established in 2001, the company has grown rapidly with its factory located in the Zhenhai Chemical Industrial Area of Ningbo, and its headquarters and foreign sales office in the Jiangdong Eastern Business Center. The factory spans approximately 15,000 square meters, with a monthly production capacity of 2,000 tons. The company operates a comprehensive research system, supply chain management, large-scale warehouse, and advanced metal fastener distribution network. Annual sales exceed $15 million.

The product range includes bolts and nuts (assembled or separate), self-tapping screws, lag screws, threaded rods, washers, and more, made from both carbon steel and stainless steel. These products are exported worldwide, including North America, Europe, Australia, Russia, Southeast Asia, and the Middle East. They strictly comply with international standards such as DIN, ANSI/IFI, JIS, BS, ISO, and GB, and are widely used in architectural steel structures, bridges, oil pipelines, machinery, furniture, vessels, and railways.

The company adheres to the ISO 9001:2000 quality management system throughout all stages of production—from raw material analysis to final inspection before shipment. Quality is considered the core of the business, and the company continuously focuses on improving quality awareness, cultivating a quality-driven culture, and ensuring customer satisfaction. In case of any defective products, the company follows strict 8D procedures to resolve issues and prevent recurrence.

With the philosophy of "Employees are the foundation, customers come first, technology leads, and quality is paramount," the company welcomes global partners for long-term cooperation and friendship. We invite you to visit China and experience the professionalism and commitment of Gangtong Zheli Fasteners. Welcome to our company!

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